[gforth] / gforth / cross.fs

gforth: gforth/cross.fs

1 :	anton	1.1	\ CROSS.FS The Cross-Compiler 06oct92py
2 :			\ Idea and implementation: Bernd Paysan (py)
3 :	anton	1.30
4 :	anton	1.86	\ Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
5 :	anton	1.30
6 :			\ This file is part of Gforth.
7 :
8 :			\ Gforth is free software; you can redistribute it and/or
9 :			\ modify it under the terms of the GNU General Public License
10 :			\ as published by the Free Software Foundation; either version 2
11 :			\ of the License, or (at your option) any later version.
12 :
13 :			\ This program is distributed in the hope that it will be useful,
14 :			\ but WITHOUT ANY WARRANTY; without even the implied warranty of
15 :			\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 :			\ GNU General Public License for more details.
17 :
18 :			\ You should have received a copy of the GNU General Public License
19 :			\ along with this program; if not, write to the Free Software
20 :	anton	1.87	\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
21 :	anton	1.1
22 :	jwilke	1.67	0
23 :			[IF]
24 :
25 :			ToDo:
26 :			Crossdoc destination ./doc/crossdoc.fd makes no sense when
27 :			cross.fs is uses seperately. jaw
28 :			Do we need this char translation with >address and in branchoffset?
29 :			(>body also affected) jaw
30 :			Clean up mark> and >resolve stuff jaw
31 :
32 :			[THEN]
33 :	anton	1.48
34 :	jwilke	1.77	hex
35 :
36 :			\ debugging for compiling
37 :
38 :			\ print stack at each colon definition
39 :			\ : : save-input cr bl word count type restore-input throw .s : ;
40 :
41 :			\ print stack at each created word
42 :			\ : create save-input cr bl word count type restore-input throw .s create ;
43 :
44 :
45 :			\ \ ------------- Setup Vocabularies
46 :
47 :			\ Remark: Vocabulary is not ANS, but it should work...
48 :
49 :			Vocabulary Cross
50 :			Vocabulary Target
51 :			Vocabulary Ghosts
52 :			Vocabulary Minimal
53 :			only Forth also Target also also
54 :			definitions Forth
55 :
56 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
57 :	jwilke	1.77	: G Ghosts ; immediate
58 :			: H previous Forth also Cross ; immediate
59 :
60 :			forth definitions
61 :
62 :	jwilke	1.78	: T previous Ghosts also Target ; immediate
63 :	jwilke	1.77	: G Ghosts ; immediate
64 :
65 :			: >cross also Cross definitions previous ;
66 :			: >target also Target definitions previous ;
67 :			: >minimal also Minimal definitions previous ;
68 :
69 :			H
70 :
71 :			>CROSS
72 :
73 :			\ find out whether we are compiling with gforth
74 :
75 :			: defined? bl word find nip ;
76 :			defined? emit-file defined? toupper and \ drop 0
77 :			[IF]
78 :			\ use this in a gforth system
79 :			: \GFORTH ; immediate
80 :			: \ANSI postpone \ ; immediate
81 :			[ELSE]
82 :			: \GFORTH postpone \ ; immediate
83 :			: \ANSI ; immediate
84 :			[THEN]
85 :
86 :			\ANSI : [IFUNDEF] defined? 0= postpone [IF] ; immediate
87 :			\ANSI : [IFDEF] defined? postpone [IF] ; immediate
88 :			0 \ANSI drop 1
89 :			[IF]
90 :			: \G postpone \ ; immediate
91 :			: rdrop postpone r> postpone drop ; immediate
92 :			: name bl word count ;
93 :			: bounds over + swap ;
94 :			: scan >r BEGIN dup WHILE over c@ r@ <> WHILE 1 /string REPEAT THEN rdrop ;
95 :			: linked here over @ , swap ! ;
96 :			: alias create , DOES> @ EXECUTE ;
97 :			: defer ['] noop alias ;
98 :			: is state @
99 :			IF ' >body postpone literal postpone !
100 :			ELSE ' >body ! THEN ; immediate
101 :			: 0>= 0< 0= ;
102 :			: d<> rot <> -rot <> or ;
103 :			: toupper dup [char] a [char] z 1+ within IF [char] A [char] a - + THEN ;
104 :			Variable ebuf
105 :			: emit-file ( c fd -- ior ) swap ebuf c! ebuf 1 chars rot write-file ;
106 :			0a Constant #lf
107 :			0d Constant #cr
108 :
109 :			[IFUNDEF] Warnings Variable Warnings [THEN]
110 :
111 :			\ \ Number parsing 23feb93py
112 :
113 :			\ number? number 23feb93py
114 :
115 :			Variable dpl
116 :
117 :			hex
118 :			Create bases 10 , 2 , A , 100 ,
119 :			\ 16 2 10 character
120 :
121 :			\ !! protect BASE saving wrapper against exceptions
122 :			: getbase ( addr u -- addr' u' )
123 :			over c@ [char] $ - dup 4 u<
124 :			IF
125 :			cells bases + @ base ! 1 /string
126 :			ELSE
127 :			drop
128 :			THEN ;
129 :
130 :			: sign? ( addr u -- addr u flag )
131 :			over c@ [char] - = dup >r
132 :			IF
133 :			1 /string
134 :			THEN
135 :			r> ;
136 :
137 :			: s>unumber? ( addr u -- ud flag )
138 :	jwilke	1.78	over [char] ' =
139 :			IF \ a ' alone is rather unusual :-)
140 :			drop char+ c@ 0 true EXIT
141 :			THEN
142 :	jwilke	1.77	base @ >r dpl on getbase
143 :			0. 2swap
144 :			BEGIN ( d addr len )
145 :			dup >r >number dup
146 :			WHILE \ there are characters left
147 :			dup r> -
148 :			WHILE \ the last >number parsed something
149 :			dup 1- dpl ! over c@ [char] . =
150 :			WHILE \ the current char is '.'
151 :			1 /string
152 :			REPEAT THEN \ there are unparseable characters left
153 :			2drop false
154 :			ELSE
155 :			rdrop 2drop true
156 :			THEN
157 :			r> base ! ;
158 :
159 :			\ ouch, this is complicated; there must be a simpler way - anton
160 :			: s>number? ( addr len -- d f )
161 :			\ converts string addr len into d, flag indicates success
162 :			sign? >r
163 :			s>unumber?
164 :			0= IF
165 :			rdrop false
166 :			ELSE \ no characters left, all ok
167 :			r>
168 :			IF
169 :			dnegate
170 :			THEN
171 :			true
172 :			THEN ;
173 :
174 :			: s>number ( addr len -- d )
175 :			\ don't use this, there is no way to tell success
176 :			s>number? drop ;
177 :
178 :			: snumber? ( c-addr u -- 0 / n -1 / d 0> )
179 :			s>number? 0=
180 :			IF
181 :			2drop false EXIT
182 :			THEN
183 :			dpl @ dup 0< IF
184 :			nip
185 :			ELSE
186 :			1+
187 :			THEN ;
188 :
189 :			: number? ( string -- string 0 / n -1 / d 0> )
190 :			dup >r count snumber? dup if
191 :			rdrop
192 :			else
193 :			r> swap
194 :			then ;
195 :
196 :			: number ( string -- d )
197 :			number? ?dup 0= abort" ?" 0<
198 :			IF
199 :			s>d
200 :			THEN ;
201 :
202 :			[THEN]
203 :	anton	1.48
204 :	jwilke	1.52	hex \ the defualt base for the cross-compiler is hex !!
205 :	jwilke	1.78	\ Warnings off
206 :	jwilke	1.52
207 :			\ words that are generaly useful
208 :
209 :	pazsan	1.59	: KB 400 * ;
210 :	jwilke	1.52	: >wordlist ( vocabulary-xt -- wordlist-struct )
211 :			also execute get-order swap >r 1- set-order r> ;
212 :
213 :			: umax 2dup u< IF swap THEN drop ;
214 :			: umin 2dup u> IF swap THEN drop ;
215 :	anton	1.1
216 :	pazsan	1.23	: string, ( c-addr u -- )
217 :			\ puts down string as cstring
218 :			dup c, here swap chars dup allot move ;
219 :	pazsan	1.5
220 :	jwilke	1.77	: ," [char] " parse string, ;
221 :
222 :	jwilke	1.52	: SetValue ( n -- <name> )
223 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
224 :			\G Same behaviour as "to" if <name> is defined
225 :	jwilke	1.52	\G SetValue searches in the current vocabulary
226 :	jwilke	1.68	save-input bl word >r restore-input throw r> count
227 :			get-current search-wordlist
228 :			IF drop >r
229 :			\ we have to set current to be topmost context wordlist
230 :			get-order get-order get-current swap 1+ set-order
231 :			r> ['] to execute
232 :	jwilke	1.74	set-order
233 :	jwilke	1.68	ELSE Value THEN ;
234 :	jwilke	1.52
235 :			: DefaultValue ( n -- <name> )
236 :	pazsan	1.54	\G Same behaviour as "Value" if the <name> is not defined
237 :			\G DefaultValue searches in the current vocabulary
238 :	jwilke	1.52	save-input bl word >r restore-input throw r> count
239 :			get-current search-wordlist
240 :	pazsan	1.56	IF bl word drop 2drop ELSE Value THEN ;
241 :	anton	1.1
242 :			hex
243 :
244 :	jwilke	1.52	\ 1 Constant Cross-Flag \ to check whether assembler compiler plug-ins are
245 :			\ for cross-compiling
246 :			\ No! we use "[IFUNDEF]" there to find out whether we are target compiling!!!
247 :
248 :			: comment? ( c-addr u -- c-addr u )
249 :			2dup s" (" compare 0=
250 :			IF postpone (
251 :			ELSE 2dup s" \" compare 0= IF postpone \ THEN
252 :			THEN ;
253 :
254 :			\ Begin CROSS COMPILER:
255 :
256 :	jwilke	1.74	\ debugging
257 :	jwilke	1.52
258 :	jwilke	1.74	0 [IF]
259 :
260 :			This implements debugflags for the cross compiler and the compiled
261 :			images. It works identical to the has-flags in the environment.
262 :			The debugflags are defined in a vocabluary. If the word exists and
263 :			its value is true, the flag is switched on.
264 :
265 :			[THEN]
266 :
267 :	jwilke	1.77	>CROSS
268 :
269 :	jwilke	1.74	Vocabulary debugflags \ debug flags for cross
270 :			also debugflags get-order over
271 :			Constant debugflags-wl
272 :			set-order previous
273 :
274 :			: DebugFlag
275 :			get-current >r debugflags-wl set-current
276 :			SetValue
277 :			r> set-current ;
278 :
279 :			: Debug? ( adr u -- flag )
280 :			\G return true if debug flag is defined or switched on
281 :			debugflags-wl search-wordlist
282 :			IF EXECUTE
283 :			ELSE false THEN ;
284 :
285 :			: D? ( <name> -- flag )
286 :			\G return true if debug flag is defined or switched on
287 :			\G while compiling we do not return the current value but
288 :			bl word count debug? ;
289 :
290 :			: [d?]
291 :			\G compile the value-xt so the debug flag can be switched
292 :			\G the flag must exist!
293 :			bl word count debugflags-wl search-wordlist
294 :			IF compile,
295 :			ELSE -1 ABORT" unknown debug flag"
296 :			\ POSTPONE false
297 :			THEN ; immediate
298 :	pazsan	1.54
299 :	jwilke	1.77	\ \ -------------------- source file
300 :
301 :			decimal
302 :
303 :			Variable cross-file-list
304 :			0 cross-file-list !
305 :			Variable target-file-list
306 :			0 target-file-list !
307 :			Variable host-file-list
308 :			0 host-file-list !
309 :
310 :			cross-file-list Value file-list
311 :			0 Value source-desc
312 :
313 :			\ file loading
314 :
315 :			: >fl-id 1 cells + ;
316 :			: >fl-name 2 cells + ;
317 :
318 :			Variable filelist 0 filelist !
319 :			Create NoFile ," #load-file#"
320 :
321 :			: loadfile ( -- adr )
322 :			source-desc ?dup IF >fl-name ELSE NoFile THEN ;
323 :
324 :			: sourcefilename ( -- adr len )
325 :			loadfile count ;
326 :
327 :			\ANSI : sourceline# 0 ;
328 :
329 :			\ \ -------------------- path handling from kernel/paths.fs
330 :
331 :			\ paths.fs path file handling 03may97jaw
332 :
333 :			\ -Changing the search-path:
334 :			\ fpath+ <path> adds a directory to the searchpath
335 :			\ fpath= <path>\|<path> makes complete now searchpath
336 :			\ seperator is \|
337 :			\ .fpath displays the search path
338 :			\ remark I:
339 :			\ a ./ in the beginning of filename is expanded to the directory the
340 :			\ current file comes from. ./ can also be included in the search-path!
341 :			\ ~+/ loads from the current working directory
342 :
343 :			\ remark II:
344 :			\ if there is no sufficient space for the search path increase it!
345 :
346 :
347 :			\ -Creating custom paths:
348 :
349 :			\ It is possible to use the search mechanism on yourself.
350 :
351 :			\ Make a buffer for the path:
352 :			\ create mypath 100 chars , \ maximum length (is checked)
353 :			\ 0 , \ real len
354 :			\ 100 chars allot \ space for path
355 :			\ use the same functions as above with:
356 :			\ mypath path+
357 :			\ mypath path=
358 :			\ mypath .path
359 :
360 :			\ do a open with the search path:
361 :			\ open-path-file ( adr len path -- fd adr len ior )
362 :			\ the file is opened read-only; if the file is not found an error is generated
363 :
364 :			\ questions to: wilke@jwdt.com
365 :
366 :			[IFUNDEF] +place
367 :			: +place ( adr len adr )
368 :			2dup >r >r
369 :			dup c@ char+ + swap move
370 :			r> r> dup c@ rot + swap c! ;
371 :			[THEN]
372 :
373 :			[IFUNDEF] place
374 :			: place ( c-addr1 u c-addr2 )
375 :			2dup c! char+ swap move ;
376 :			[THEN]
377 :
378 :			\ if we have path handling, use this and the setup of it
379 :			[IFUNDEF] open-fpath-file
380 :
381 :			create sourcepath 1024 chars , 0 , 1024 chars allot \ !! make this dynamic
382 :			sourcepath value fpath
383 :
384 :			: also-path ( adr len path^ -- )
385 :			>r
386 :			\ len check
387 :			r@ cell+ @ over + r@ @ u> ABORT" path buffer too small!"
388 :			\ copy into
389 :			tuck r@ cell+ dup @ cell+ + swap cmove
390 :			\ make delimiter
391 :			0 r@ cell+ dup @ cell+ + 2 pick + c! 1 + r> cell+ +!
392 :			;
393 :
394 :			: only-path ( adr len path^ -- )
395 :			dup 0 swap cell+ ! also-path ;
396 :
397 :			: path+ ( path-addr "dir" -- ) \ gforth
398 :			\G Add the directory @var{dir} to the search path @var{path-addr}.
399 :			name rot also-path ;
400 :
401 :			: fpath+ ( "dir" ) \ gforth
402 :			\G Add directory @var{dir} to the Forth search path.
403 :			fpath path+ ;
404 :
405 :			: path= ( path-addr "dir1\|dir2\|dir3" ) \ gforth
406 :			\G Make a complete new search path; the path separator is \|.
407 :			name 2dup bounds ?DO i c@ [char] \| = IF 0 i c! THEN LOOP
408 :			rot only-path ;
409 :
410 :			: fpath= ( "dir1\|dir2\|dir3" ) \ gforth
411 :			\G Make a complete new Forth search path; the path separator is \|.
412 :			fpath path= ;
413 :
414 :			: path>counted cell+ dup cell+ swap @ ;
415 :
416 :			: next-path ( adr len -- adr2 len2 )
417 :			2dup 0 scan
418 :			dup 0= IF 2drop 0 -rot 0 -rot EXIT THEN
419 :			>r 1+ -rot r@ 1- -rot
420 :			r> - ;
421 :
422 :			: previous-path ( path^ -- )
423 :			dup path>counted
424 :			BEGIN tuck dup WHILE repeat ;
425 :
426 :			: .path ( path-addr -- ) \ gforth
427 :			\G Display the contents of the search path @var{path-addr}.
428 :			path>counted
429 :			BEGIN next-path dup WHILE type space REPEAT 2drop 2drop ;
430 :
431 :			: .fpath ( -- ) \ gforth
432 :			\G Display the contents of the Forth search path.
433 :			fpath .path ;
434 :
435 :			: absolut-path? ( addr u -- flag ) \ gforth
436 :			\G A path is absolute if it starts with a / or a ~ (~ expansion),
437 :			\G or if it is in the form ./*, extended regexp: ^[/~]\|./, or if
438 :			\G it has a colon as second character ("C:..."). Paths simply
439 :			\G containing a / are not absolute!
440 :			2dup 2 u> swap 1+ c@ [char] : = and >r \ dos absoulte: c:/....
441 :			over c@ [char] / = >r
442 :			over c@ [char] ~ = >r
443 :			\ 2dup 3 min S" ../" compare 0= r> or >r \ not catered for in expandtopic
444 :			2 min S" ./" compare 0=
445 :			r> r> r> or or or ;
446 :
447 :			Create ofile 0 c, 255 chars allot
448 :			Create tfile 0 c, 255 chars allot
449 :
450 :			: pathsep? dup [char] / = swap [char] \ = or ;
451 :
452 :			: need/ ofile dup c@ + c@ pathsep? 0= IF s" /" ofile +place THEN ;
453 :
454 :			: extractpath ( adr len -- adr len2 )
455 :			BEGIN dup WHILE 1-
456 :			2dup + c@ pathsep? IF EXIT THEN
457 :			REPEAT ;
458 :
459 :			: remove~+ ( -- )
460 :			ofile count 3 min s" ~+/" compare 0=
461 :			IF
462 :			ofile count 3 /string ofile place
463 :			THEN ;
464 :
465 :			: expandtopic ( -- ) \ stack effect correct? - anton
466 :			\ expands "./" into an absolute name
467 :			ofile count 2 min s" ./" compare 0=
468 :			IF
469 :			ofile count 1 /string tfile place
470 :			0 ofile c! sourcefilename extractpath ofile place
471 :			ofile c@ IF need/ THEN
472 :			tfile count over c@ pathsep? IF 1 /string THEN
473 :			ofile +place
474 :			THEN ;
475 :
476 :			: compact.. ( adr len -- adr2 len2 )
477 :	pazsan	1.85	\ deletes phrases like "xy/.." out of our directory name 2dec97jaw
478 :			over swap
479 :			BEGIN dup WHILE
480 :			dup >r '/ scan 2dup 4 min s" /../" compare 0=
481 :			IF
482 :			dup r> - >r 4 /string over r> + 4 -
483 :			swap 2dup + >r move dup r> over -
484 :			ELSE
485 :			rdrop dup 1 min /string
486 :			THEN
487 :			REPEAT drop over - ;
488 :	jwilke	1.77
489 :			: reworkdir ( -- )
490 :			remove~+
491 :			ofile count compact..
492 :			nip ofile c! ;
493 :
494 :			: open-ofile ( -- fid ior )
495 :			\G opens the file whose name is in ofile
496 :			expandtopic reworkdir
497 :			ofile count r/o open-file ;
498 :
499 :			: check-path ( adr1 len1 adr2 len2 -- fd 0 \| 0 <>0 )
500 :			0 ofile ! >r >r ofile place need/
501 :			r> r> ofile +place
502 :			open-ofile ;
503 :
504 :			: open-path-file ( addr1 u1 path-addr -- wfileid addr2 u2 0 \| ior ) \ gforth
505 :			\G Look in path @var{path-addr} for the file specified by @var{addr1 u1}.
506 :			\G If found, the resulting path and an open file descriptor
507 :			\G are returned. If the file is not found, @var{ior} is non-zero.
508 :			>r
509 :			2dup absolut-path?
510 :			IF rdrop
511 :			ofile place open-ofile
512 :			dup 0= IF >r ofile count r> THEN EXIT
513 :			ELSE r> path>counted
514 :			BEGIN next-path dup
515 :			WHILE 5 pick 5 pick check-path
516 :			0= IF >r 2drop 2drop r> ofile count 0 EXIT ELSE drop THEN
517 :			REPEAT
518 :			2drop 2drop 2drop -38
519 :			THEN ;
520 :
521 :			: open-fpath-file ( addr1 u1 -- wfileid addr2 u2 0 \| ior ) \ gforth
522 :			\G Look in the Forth search path for the file specified by @var{addr1 u1}.
523 :			\G If found, the resulting path and an open file descriptor
524 :			\G are returned. If the file is not found, @var{ior} is non-zero.
525 :			fpath open-path-file ;
526 :
527 :			fpath= ~+
528 :
529 :			[THEN]
530 :
531 :			\ \ -------------------- include require 13may99jaw
532 :
533 :			>CROSS
534 :
535 :			: add-included-file ( adr len -- adr )
536 :			dup >fl-name char+ allocate throw >r
537 :			file-list @ r@ ! r@ file-list !
538 :			r@ >fl-name place r> ;
539 :
540 :			: included? ( c-addr u -- f )
541 :			file-list
542 :			BEGIN @ dup
543 :			WHILE >r 2dup r@ >fl-name count compare 0=
544 :			IF rdrop 2drop true EXIT THEN
545 :			r>
546 :			REPEAT
547 :			2drop drop false ;
548 :
549 :			false DebugFlag showincludedfiles
550 :
551 :			: included1 ( fd adr u -- )
552 :			\ include file adr u / fd
553 :			\ we don't use fd with include-file, because the forth system
554 :			\ doesn't know the name of the file to get a nice error report
555 :			[d?] showincludedfiles
556 :			IF cr ." Including: " 2dup type ." ..." THEN
557 :			rot close-file throw
558 :			source-desc >r
559 :			add-included-file to source-desc
560 :			sourcefilename
561 :			['] included catch
562 :			r> to source-desc
563 :			throw ;
564 :
565 :			: included ( adr len -- )
566 :			cross-file-list to file-list
567 :			open-fpath-file throw
568 :			included1 ;
569 :
570 :			: required ( adr len -- )
571 :			cross-file-list to file-list
572 :			open-fpath-file throw \ 2dup cr ." R:" type
573 :			2dup included?
574 :			IF 2drop close-file throw
575 :			ELSE included1
576 :			THEN ;
577 :
578 :			: include bl word count included ;
579 :
580 :			: require bl word count required ;
581 :
582 :	jwilke	1.78	0 [IF]
583 :
584 :	jwilke	1.77	also forth definitions previous
585 :
586 :			: included ( adr len -- ) included ;
587 :
588 :			: required ( adr len -- ) required ;
589 :
590 :			: include include ;
591 :
592 :			: require require ;
593 :
594 :	jwilke	1.78	[THEN]
595 :
596 :	jwilke	1.77	>CROSS
597 :			hex
598 :
599 :			\ \ -------------------- Error Handling 05aug97jaw
600 :
601 :			\ Flags
602 :
603 :			also forth definitions \ these values may be predefined before
604 :			\ the cross-compiler is loaded
605 :
606 :			false DefaultValue stack-warn \ check on empty stack at any definition
607 :			false DefaultValue create-forward-warn \ warn on forward declaration of created words
608 :
609 :			previous >CROSS
610 :
611 :			: .dec
612 :			base @ decimal swap . base ! ;
613 :
614 :			: .sourcepos
615 :			cr sourcefilename type ." :"
616 :			sourceline# .dec ;
617 :
618 :			: warnhead
619 :			\G display error-message head
620 :			\G perhaps with linenumber and filename
621 :			.sourcepos ." Warning: " ;
622 :
623 :			: empty? depth IF .sourcepos ." Stack not empty!" THEN ;
624 :
625 :			stack-warn [IF]
626 :			: defempty? empty? ;
627 :			[ELSE]
628 :			: defempty? ; immediate
629 :			[THEN]
630 :
631 :	jwilke	1.52	\ \ GhostNames Ghosts 9may93jaw
632 :
633 :			\ second name source to search trough list
634 :
635 :			VARIABLE GhostNames
636 :			0 GhostNames !
637 :
638 :			: GhostName ( -- addr )
639 :	jwilke	1.79	align here GhostNames @ , GhostNames ! here 0 ,
640 :	jwilke	1.52	bl word count
641 :			\ 2dup type space
642 :			string, \ !! cfalign ?
643 :			align ;
644 :
645 :			\ Ghost Builder 06oct92py
646 :
647 :			\ <T T> new version with temp variable 10may93jaw
648 :
649 :			VARIABLE VocTemp
650 :
651 :			: <T get-current VocTemp ! also Ghosts definitions ;
652 :			: T> previous VocTemp @ set-current ;
653 :
654 :			hex
655 :			4711 Constant <fwd> 4712 Constant <res>
656 :			4713 Constant <imm> 4714 Constant <do:>
657 :	jwilke	1.75	4715 Constant <skip>
658 :	jwilke	1.52
659 :	pazsan	1.93	\ Compiler States
660 :
661 :			Variable comp-state
662 :			0 Constant interpreting
663 :			1 Constant compiling
664 :			2 Constant resolving
665 :			3 Constant assembling
666 :
667 :			Defer lit, ( n -- )
668 :			Defer alit, ( n -- )
669 :
670 :			Defer branch, ( target-addr -- ) \ compiles a branch
671 :			Defer ?branch, ( target-addr -- ) \ compiles a ?branch
672 :			Defer branchmark, ( -- branch-addr ) \ reserves room for a branch
673 :			Defer ?branchmark, ( -- branch-addr ) \ reserves room for a ?branch
674 :			Defer ?domark, ( -- branch-addr ) \ reserves room for a ?do branch
675 :			Defer branchto, ( -- ) \ actual program position is target of a branch (do e.g. alignment)
676 :			Defer branchtoresolve, ( branch-addr -- ) \ resolves a forward reference from branchmark
677 :			Defer branchfrom, ( -- ) \ ?!
678 :			Defer branchtomark, ( -- target-addr ) \ marks a branch destination
679 :
680 :			Defer colon, ( tcfa -- ) \ compiles call to tcfa at current position
681 :	pazsan	1.94	Defer prim, ( tcfa -- ) \ compiles a primitive invocation
682 :			\ at current position
683 :	pazsan	1.93	Defer colonmark, ( -- addr ) \ marks a colon call
684 :			Defer colon-resolve ( tcfa addr -- )
685 :
686 :			Defer addr-resolve ( target-addr addr -- )
687 :			Defer doer-resolve ( ghost res-pnt target-addr addr -- ghost res-pnt )
688 :	jwilke	1.52
689 :	pazsan	1.93	Defer do, ( -- do-token )
690 :			Defer ?do, ( -- ?do-token )
691 :			Defer for, ( -- for-token )
692 :			Defer loop, ( do-token / ?do-token -- )
693 :			Defer +loop, ( do-token / ?do-token -- )
694 :			Defer next, ( for-token )
695 :	jwilke	1.52
696 :	pazsan	1.93	[IFUNDEF] ca>native
697 :			defer ca>native
698 :			[THEN]
699 :	jwilke	1.52
700 :	pazsan	1.93	\ ghost structure
701 :	jwilke	1.52
702 :			: >magic ; \ type of ghost
703 :			: >link cell+ ; \ pointer where ghost is in target, or if unresolved
704 :			\ points to the where we have to resolve (linked-list)
705 :			: >exec cell+ cell+ ; \ execution symantics (while target compiling) of ghost
706 :	pazsan	1.93	: >comp 3 cells + ; \ compilation semantics
707 :			: >end 4 cells + ; \ room for additional tags
708 :	jwilke	1.52	\ for builder (create, variable...) words the
709 :			\ execution symantics of words built are placed here
710 :
711 :	pazsan	1.93	\ resolve structure
712 :
713 :			: >next ; \ link to next field
714 :			: >tag cell+ ; \ indecates type of reference: 0: call, 1: address, 2: doer
715 :			: >taddr cell+ cell+ ;
716 :			: >ghost 3 cells + ;
717 :			: >file 4 cells + ;
718 :			: >line 5 cells + ;
719 :
720 :			\ refer variables
721 :
722 :	jwilke	1.52	Variable executed-ghost \ last executed ghost, needed in tcreate and gdoes>
723 :			Variable last-ghost \ last ghost that is created
724 :			Variable last-header-ghost \ last ghost definitions with header
725 :
726 :	pazsan	1.93	: (refered) ( ghost addr tag -- )
727 :			\G creates a reference to ghost at address taddr
728 :			rot >r here r@ >link @ , r> >link !
729 :			( taddr tag ) ,
730 :			( taddr ) ,
731 :			last-header-ghost @ ,
732 :			loadfile ,
733 :			sourceline# ,
734 :			;
735 :
736 :			\ iForth makes only immediate directly after create
737 :			\ make atonce trick! ?
738 :
739 :			Variable atonce atonce off
740 :
741 :			: NoExec true ABORT" CROSS: Don't execute ghost, or immediate target word" ;
742 :
743 :			: is-forward ( ghost -- )
744 :			colonmark, 0 (refered) ; \ compile space for call
745 :
746 :			: GhostHeader <fwd> , 0 , ['] NoExec , ['] is-forward , ;
747 :
748 :	jwilke	1.52	: Make-Ghost ( "name" -- ghost )
749 :			>in @ GhostName swap >in !
750 :			<T Create atonce @ IF immediate atonce off THEN
751 :			here tuck swap ! ghostheader T>
752 :			dup last-ghost !
753 :			DOES> dup executed-ghost ! >exec @ execute ;
754 :
755 :			\ ghost words 14oct92py
756 :			\ changed: 10may93py/jaw
757 :
758 :			: gfind ( string -- ghost true/1 / string false )
759 :			\ searches for string in word-list ghosts
760 :	jwilke	1.77	dup count [ ' ghosts >wordlist ] Literal search-wordlist
761 :	jwilke	1.52	dup IF >r >body nip r> THEN ;
762 :
763 :			: gdiscover ( xt -- ghost true \| xt false )
764 :			GhostNames
765 :			BEGIN @ dup
766 :			WHILE 2dup
767 :			cell+ @ dup >magic @ <fwd> <>
768 :			>r >link @ = r> and
769 :			IF cell+ @ nip true EXIT THEN
770 :			REPEAT
771 :			drop false ;
772 :
773 :			VARIABLE Already
774 :
775 :			: ghost ( "name" -- ghost )
776 :			Already off
777 :	jwilke	1.76	>in @ bl word gfind IF atonce off Already on nip EXIT THEN
778 :	jwilke	1.52	drop >in ! Make-Ghost ;
779 :
780 :			: >ghostname ( ghost -- adr len )
781 :			GhostNames
782 :			BEGIN @ dup
783 :			WHILE 2dup cell+ @ =
784 :			UNTIL nip 2 cells + count
785 :	pazsan	1.54	ELSE 2drop
786 :			\ true abort" CROSS: Ghostnames inconsistent"
787 :			s" ?!?!?!"
788 :	jwilke	1.52	THEN ;
789 :
790 :	jwilke	1.78	: .ghost ( ghost -- ) >ghostname type ;
791 :
792 :	jwilke	1.77	\ ' >ghostname ALIAS @name
793 :	jwilke	1.52
794 :			: forward? ( ghost -- flag )
795 :			>magic @ <fwd> = ;
796 :
797 :	jwilke	1.75	: undefined? ( ghost -- flag )
798 :			>magic @ dup <fwd> = swap <skip> = or ;
799 :
800 :	jwilke	1.52	\ Predefined ghosts 12dec92py
801 :
802 :			ghost 0= drop
803 :			ghost branch ghost ?branch 2drop
804 :			ghost (do) ghost (?do) 2drop
805 :			ghost (for) drop
806 :			ghost (loop) ghost (+loop) 2drop
807 :			ghost (next) drop
808 :			ghost unloop ghost ;S 2drop
809 :			ghost lit ghost (compile) ghost ! 2drop drop
810 :			ghost (does>) ghost noop 2drop
811 :	pazsan	1.97	ghost (.") ghost (S") ghost (ABORT") 2drop drop
812 :	jwilke	1.52	ghost ' drop
813 :			ghost :docol ghost :doesjump ghost :dodoes 2drop drop
814 :	pazsan	1.93	ghost :dovar ghost :dodefer ghost :dofield 2drop drop
815 :	jwilke	1.52	ghost over ghost = ghost drop 2drop drop
816 :	pazsan	1.93	ghost call ghost useraddr ghost execute 2drop drop
817 :			ghost + ghost - ghost @ 2drop drop
818 :	pazsan	1.54	ghost 2drop drop
819 :			ghost 2dup drop
820 :	jwilke	1.52
821 :			\ \ Parameter for target systems 06oct92py
822 :
823 :			\ we define it ans like...
824 :			wordlist Constant target-environment
825 :
826 :			VARIABLE env-current \ save information of current dictionary to restore with environ>
827 :
828 :			: >ENVIRON get-current env-current ! target-environment set-current ;
829 :			: ENVIRON> env-current @ set-current ;
830 :	pazsan	1.43
831 :	anton	1.48	>TARGET
832 :	pazsan	1.43
833 :	jwilke	1.67	: environment? ( adr len -- [ x ] true \| false )
834 :	jwilke	1.52	target-environment search-wordlist
835 :			IF execute true ELSE false THEN ;
836 :
837 :	jwilke	1.67	: e? bl word count T environment? H 0= ABORT" environment variable not defined!" ;
838 :	jwilke	1.52
839 :	jwilke	1.67	: has? bl word count T environment? H
840 :	jwilke	1.53	IF \ environment variable is present, return its value
841 :			ELSE \ environment variable is not present, return false
842 :	jwilke	1.75	false \ debug true ABORT" arg"
843 :	jwilke	1.53	THEN ;
844 :	jwilke	1.52
845 :			: $has? T environment? H IF ELSE false THEN ;
846 :	anton	1.48
847 :	pazsan	1.54	>ENVIRON get-order get-current swap 1+ set-order
848 :			true SetValue compiler
849 :	pazsan	1.83	true SetValue cross
850 :	pazsan	1.54	true SetValue standard-threading
851 :			>TARGET previous
852 :	jwilke	1.52
853 :	jwilke	1.77	0
854 :			[IFDEF] mach-file mach-file count 1 [THEN]
855 :			[IFDEF] machine-file machine-file 1 [THEN]
856 :			[IF] included hex drop
857 :			[ELSE] cr ." No machine description!" ABORT
858 :			[THEN]
859 :	pazsan	1.43
860 :	jwilke	1.53	>ENVIRON
861 :
862 :	pazsan	1.54	T has? ec H
863 :			[IF]
864 :			false DefaultValue relocate
865 :			false DefaultValue file
866 :			false DefaultValue OS
867 :			false DefaultValue prims
868 :			false DefaultValue floating
869 :			false DefaultValue glocals
870 :			false DefaultValue dcomps
871 :			false DefaultValue hash
872 :			false DefaultValue xconds
873 :			false DefaultValue header
874 :	pazsan	1.92	false DefaultValue backtrace
875 :	pazsan	1.88	false DefaultValue new-input
876 :	pazsan	1.54	[THEN]
877 :
878 :			true DefaultValue interpreter
879 :			true DefaultValue ITC
880 :			false DefaultValue rom
881 :	jwilke	1.73	true DefaultValue standardthreading
882 :	jwilke	1.53
883 :	jwilke	1.52	>TARGET
884 :	jwilke	1.53	s" relocate" T environment? H
885 :			[IF] SetValue NIL
886 :			[ELSE] >ENVIRON T NIL H SetValue relocate
887 :			[THEN]
888 :	pazsan	1.43
889 :			>CROSS
890 :
891 :	jwilke	1.52	\ \ Create additional parameters 19jan95py
892 :	pazsan	1.19
893 :	jwilke	1.71	\ currently cross only works for host machines with address-unit-bits
894 :			\ eual to 8 because of s! and sc!
895 :			\ but I start to query the environment just to modularize a little bit
896 :
897 :			: check-address-unit-bits ( -- )
898 :			\ s" ADDRESS-UNIT-BITS" environment?
899 :			\ IF 8 <> ELSE true THEN
900 :			\ ABORT" ADDRESS-UNIT-BITS unknown or not equal to 8!"
901 :
902 :			\ shit, this doesn't work because environment? is only defined for
903 :			\ gforth.fi and not kernl???.fi
904 :			;
905 :
906 :			check-address-unit-bits
907 :			8 Constant bits/byte \ we define: byte is address-unit
908 :
909 :			1 bits/byte lshift Constant maxbyte
910 :	jwilke	1.77	\ this sets byte size for the target machine, (probably right guess) jaw
911 :	jwilke	1.67
912 :	pazsan	1.19	T
913 :	jwilke	1.71	NIL Constant TNIL
914 :			cell Constant tcell
915 :			cell<< Constant tcell<<
916 :			cell>bit Constant tcell>bit
917 :			bits/char Constant tbits/char
918 :			bits/char H bits/byte T /
919 :			Constant tchar
920 :			float Constant tfloat
921 :			1 bits/char lshift Constant tmaxchar
922 :			[IFUNDEF] bits/byte
923 :			8 Constant tbits/byte
924 :			[ELSE]
925 :			bits/byte Constant tbits/byte
926 :			[THEN]
927 :	pazsan	1.19	H
928 :	pazsan	1.81	tbits/char bits/byte / Constant tbyte
929 :	jwilke	1.71
930 :	pazsan	1.19
931 :	anton	1.48	\ Variables 06oct92py
932 :
933 :			Variable image
934 :			Variable tlast TNIL tlast ! \ Last name field
935 :			Variable tlastcfa \ Last code field
936 :			Variable tdoes \ Resolve does> calls
937 :			Variable bit$
938 :	jwilke	1.52
939 :			\ statistics 10jun97jaw
940 :
941 :			Variable headers-named 0 headers-named !
942 :			Variable user-vars 0 user-vars !
943 :
944 :	jwilke	1.67	: target>bitmask-size ( u1 -- u2 )
945 :			1- tcell>bit rshift 1+ ;
946 :
947 :			: allocatetarget ( size --- adr )
948 :			dup allocate ABORT" CROSS: No memory for target"
949 :			swap over swap erase ;
950 :	jwilke	1.52
951 :	pazsan	1.54	\ \ memregion.fs
952 :	jwilke	1.52
953 :
954 :			Variable last-defined-region \ pointer to last defined region
955 :			Variable region-link \ linked list with all regions
956 :			Variable mirrored-link \ linked list for mirrored regions
957 :			0 dup mirrored-link ! region-link !
958 :
959 :
960 :	jwilke	1.67	: >rname 6 cells + ;
961 :			: >rbm 5 cells + ;
962 :			: >rmem 4 cells + ;
963 :			: >rlink 3 cells + ;
964 :	jwilke	1.52	: >rdp 2 cells + ;
965 :			: >rlen cell+ ;
966 :			: >rstart ;
967 :
968 :
969 :			: region ( addr len -- ) \G create a new region
970 :			\ check whether predefined region exists
971 :			save-input bl word find >r >r restore-input throw r> r> 0=
972 :			IF \ make region
973 :			drop
974 :			save-input create restore-input throw
975 :			here last-defined-region !
976 :			over ( startaddr ) , ( length ) , ( dp ) ,
977 :	jwilke	1.67	region-link linked 0 , 0 , bl word count string,
978 :	jwilke	1.52	ELSE \ store new parameters in region
979 :			bl word drop
980 :			>body >r r@ last-defined-region !
981 :	jwilke	1.67	r@ >rlen ! dup r@ >rstart ! r> >rdp !
982 :	jwilke	1.52	THEN ;
983 :
984 :			: borders ( region -- startaddr endaddr ) \G returns lower and upper region border
985 :	jwilke	1.67	dup >rstart @ swap >rlen @ over + ;
986 :	jwilke	1.52
987 :			: extent ( region -- startaddr len ) \G returns the really used area
988 :	jwilke	1.67	dup >rstart @ swap >rdp @ over - ;
989 :	jwilke	1.52
990 :			: area ( region -- startaddr totallen ) \G returns the total area
991 :	jwilke	1.79	dup >rstart @ swap >rlen @ ;
992 :	jwilke	1.52
993 :			: mirrored \G mark a region as mirrored
994 :			mirrored-link
995 :	jwilke	1.68	align linked last-defined-region @ , ;
996 :	jwilke	1.52
997 :	jwilke	1.67	: .addr ( u -- )
998 :			\G prints a 16 or 32 Bit nice hex value
999 :	jwilke	1.52	base @ >r hex
1000 :			tcell 2 u>
1001 :	jwilke	1.77	IF s>d <# # # # # [char] . hold # # # # #> type
1002 :	jwilke	1.52	ELSE s>d <# # # # # # #> type
1003 :			THEN r> base ! ;
1004 :
1005 :			: .regions \G display region statistic
1006 :
1007 :			\ we want to list the regions in the right order
1008 :			\ so first collect all regions on stack
1009 :			0 region-link @
1010 :			BEGIN dup WHILE dup @ REPEAT drop
1011 :			BEGIN dup
1012 :	jwilke	1.67	WHILE cr
1013 :			0 >rlink - >r
1014 :			r@ >rname count tuck type
1015 :	jwilke	1.52	12 swap - 0 max spaces space
1016 :	jwilke	1.67	." Start: " r@ >rstart @ dup .addr space
1017 :			." End: " r@ >rlen @ + .addr space
1018 :			." DP: " r> >rdp @ .addr
1019 :	jwilke	1.52	REPEAT drop
1020 :	jwilke	1.53	s" rom" T $has? H 0= ?EXIT
1021 :	jwilke	1.52	cr ." Mirrored:"
1022 :			mirrored-link @
1023 :			BEGIN dup
1024 :	jwilke	1.67	WHILE space dup cell+ @ >rname count type @
1025 :	jwilke	1.52	REPEAT drop cr
1026 :			;
1027 :
1028 :			\ -------- predefined regions
1029 :
1030 :			0 0 region address-space
1031 :			\ total memory addressed and used by the target system
1032 :
1033 :			0 0 region dictionary
1034 :			\ rom area for the compiler
1035 :
1036 :	jwilke	1.53	T has? rom H
1037 :	jwilke	1.52	[IF]
1038 :			0 0 region ram-dictionary mirrored
1039 :			\ ram area for the compiler
1040 :			[ELSE]
1041 :			' dictionary ALIAS ram-dictionary
1042 :			[THEN]
1043 :
1044 :			0 0 region return-stack
1045 :
1046 :			0 0 region data-stack
1047 :
1048 :			0 0 region tib-region
1049 :
1050 :			' dictionary ALIAS rom-dictionary
1051 :
1052 :
1053 :			: setup-target ( -- ) \G initialize targets memory space
1054 :	jwilke	1.53	s" rom" T $has? H
1055 :	jwilke	1.52	IF \ check for ram and rom...
1056 :	jwilke	1.72	\ address-space area nip 0<>
1057 :	jwilke	1.67	ram-dictionary area nip 0<>
1058 :			rom-dictionary area nip 0<>
1059 :	jwilke	1.72	and 0=
1060 :	jwilke	1.52	ABORT" CROSS: define address-space, rom- , ram-dictionary, with rom-support!"
1061 :			THEN
1062 :			address-space area nip
1063 :			IF
1064 :			address-space area
1065 :			ELSE
1066 :			dictionary area
1067 :			THEN
1068 :	jwilke	1.67	nip 0=
1069 :	jwilke	1.52	ABORT" CROSS: define at least address-space or dictionary!!"
1070 :	jwilke	1.67
1071 :			\ allocate target for each region
1072 :			region-link
1073 :			BEGIN @ dup
1074 :			WHILE dup
1075 :			0 >rlink - >r
1076 :			r@ >rlen @
1077 :			IF \ allocate mem
1078 :			r@ >rlen @ dup
1079 :
1080 :			allocatetarget dup image !
1081 :			r@ >rmem !
1082 :
1083 :			target>bitmask-size allocatetarget
1084 :	jwilke	1.72	dup bit$ !
1085 :	jwilke	1.67	r> >rbm !
1086 :
1087 :			ELSE r> drop THEN
1088 :	jwilke	1.72	REPEAT drop ;
1089 :
1090 :			\ MakeKernal 22feb99jaw
1091 :
1092 :			: makekernel ( targetsize -- targetsize )
1093 :			dup dictionary >rlen ! setup-target ;
1094 :
1095 :			>MINIMAL
1096 :			: makekernel makekernel ;
1097 :			>CROSS
1098 :	jwilke	1.52
1099 :	pazsan	1.54	\ \ switched tdp for rom support 03jun97jaw
1100 :	jwilke	1.52
1101 :			\ second value is here to store some maximal value for statistics
1102 :			\ tempdp is also embedded here but has nothing to do with rom support
1103 :			\ (needs switched dp)
1104 :
1105 :			variable tempdp 0 , \ temporary dp for resolving
1106 :			variable tempdp-save
1107 :
1108 :			0 [IF]
1109 :			variable romdp 0 , \ Dictionary-Pointer for ramarea
1110 :			variable ramdp 0 , \ Dictionary-Pointer for romarea
1111 :
1112 :			\
1113 :			variable sramdp \ start of ram-area for forth
1114 :			variable sromdp \ start of rom-area for forth
1115 :
1116 :			[THEN]
1117 :
1118 :
1119 :			0 value tdp
1120 :			variable fixed \ flag: true: no automatic switching
1121 :			\ false: switching is done automatically
1122 :
1123 :			\ Switch-Policy:
1124 :			\
1125 :			\ a header is always compiled into rom
1126 :			\ after a created word (create and variable) compilation goes to ram
1127 :			\
1128 :			\ Be careful: If you want to make the data behind create into rom
1129 :			\ you have to put >rom before create!
1130 :
1131 :			variable constflag constflag off
1132 :
1133 :	jwilke	1.67	: activate ( region -- )
1134 :			\G next code goes to this region
1135 :			>rdp to tdp ;
1136 :
1137 :	jwilke	1.52	: (switchram)
1138 :	jwilke	1.53	fixed @ ?EXIT s" rom" T $has? H 0= ?EXIT
1139 :	jwilke	1.67	ram-dictionary activate ;
1140 :	jwilke	1.52
1141 :			: switchram
1142 :			constflag @
1143 :			IF constflag off ELSE (switchram) THEN ;
1144 :
1145 :			: switchrom
1146 :	jwilke	1.67	fixed @ ?EXIT rom-dictionary activate ;
1147 :	jwilke	1.52
1148 :			: >tempdp ( addr -- )
1149 :			tdp tempdp-save ! tempdp to tdp tdp ! ;
1150 :			: tempdp> ( -- )
1151 :			tempdp-save @ to tdp ;
1152 :
1153 :			: >ram fixed off (switchram) fixed on ;
1154 :			: >rom fixed off switchrom fixed on ;
1155 :			: >auto fixed off switchrom ;
1156 :
1157 :
1158 :
1159 :			\ : romstart dup sromdp ! romdp ! ;
1160 :			\ : ramstart dup sramdp ! ramdp ! ;
1161 :
1162 :	jwilke	1.67	\ default compilation goes to rom
1163 :	jwilke	1.52	\ when romable support is off, only the rom switch is used (!!)
1164 :			>auto
1165 :
1166 :	anton	1.48	: there tdp @ ;
1167 :
1168 :	jwilke	1.52	>TARGET
1169 :	anton	1.48
1170 :	jwilke	1.52	\ \ Target Memory Handling
1171 :	anton	1.1
1172 :			\ Byte ordering and cell size 06oct92py
1173 :
1174 :	pazsan	1.19	: cell+ tcell + ;
1175 :			: cells tcell<< lshift ;
1176 :	jwilke	1.71	: chars tchar * ;
1177 :			: char+ tchar + ;
1178 :	pazsan	1.19	: floats tfloat * ;
1179 :	anton	1.6
1180 :	anton	1.1	>CROSS
1181 :	pazsan	1.19	: cell/ tcell<< rshift ;
1182 :	anton	1.1	>TARGET
1183 :			20 CONSTANT bl
1184 :	jwilke	1.52	\ TNIL Constant NIL
1185 :	anton	1.1
1186 :			>CROSS
1187 :
1188 :	pazsan	1.20	bigendian
1189 :			[IF]
1190 :	jwilke	1.52	: S! ( n addr -- ) >r s>d r> tcell bounds swap 1-
1191 :	pazsan	1.20	DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1192 :	jwilke	1.52	: S@ ( addr -- n ) >r 0 0 r> tcell bounds
1193 :	pazsan	1.20	DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1194 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds swap 1-
1195 :			DO maxbyte ud/mod rot I c! -1 +LOOP 2drop ;
1196 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds
1197 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap LOOP d>s ;
1198 :	pazsan	1.19	[ELSE]
1199 :	jwilke	1.52	: S! ( n addr -- ) >r s>d r> tcell bounds
1200 :	pazsan	1.20	DO maxbyte ud/mod rot I c! LOOP 2drop ;
1201 :	jwilke	1.52	: S@ ( addr -- n ) >r 0 0 r> tcell bounds swap 1-
1202 :	pazsan	1.20	DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1203 :	pazsan	1.57	: Sc! ( n addr -- ) >r s>d r> tchar bounds
1204 :			DO maxbyte ud/mod rot I c! LOOP 2drop ;
1205 :			: Sc@ ( addr -- n ) >r 0 0 r> tchar bounds swap 1-
1206 :			DO maxbyte * swap maxbyte um* rot + swap I c@ + swap -1 +LOOP d>s ;
1207 :	anton	1.1	[THEN]
1208 :
1209 :	jwilke	1.67	: taddr>region ( taddr -- region \| 0 )
1210 :			\G finds for a target-address the correct region
1211 :			\G returns 0 if taddr is not in range of a target memory region
1212 :			region-link
1213 :			BEGIN @ dup
1214 :			WHILE dup >r
1215 :			0 >rlink - >r
1216 :			r@ >rlen @
1217 :			IF dup r@ borders within
1218 :			IF r> r> drop nip EXIT THEN
1219 :			THEN
1220 :			r> drop
1221 :			r>
1222 :			REPEAT
1223 :			2drop 0 ;
1224 :
1225 :			: (>regionimage) ( taddr -- 'taddr )
1226 :			dup
1227 :			\ find region we want to address
1228 :			taddr>region dup 0= ABORT" Address out of range!"
1229 :			>r
1230 :			\ calculate offset in region
1231 :			r@ >rstart @ -
1232 :			\ add regions real address in our memory
1233 :			r> >rmem @ + ;
1234 :
1235 :	anton	1.1	\ Bit string manipulation 06oct92py
1236 :			\ 9may93jaw
1237 :			CREATE Bittable 80 c, 40 c, 20 c, 10 c, 8 c, 4 c, 2 c, 1 c,
1238 :			: bits ( n -- n ) chars Bittable + c@ ;
1239 :
1240 :			: >bit ( addr n -- c-addr mask ) 8 /mod rot + swap bits ;
1241 :			: +bit ( addr n -- ) >bit over c@ or swap c! ;
1242 :	pazsan	1.4	: -bit ( addr n -- ) >bit invert over c@ and swap c! ;
1243 :	jwilke	1.67
1244 :	jwilke	1.84	: (relon) ( taddr -- )
1245 :			[ [IFDEF] fd-relocation-table ]
1246 :			s" +" fd-relocation-table write-file throw
1247 :			dup s>d <# #s #> fd-relocation-table write-line throw
1248 :			[ [THEN] ]
1249 :			bit$ @ swap cell/ +bit ;
1250 :
1251 :			: (reloff) ( taddr -- )
1252 :			[ [IFDEF] fd-relocation-table ]
1253 :			s" -" fd-relocation-table write-file throw
1254 :			dup s>d <# #s #> fd-relocation-table write-line throw
1255 :			[ [THEN] ]
1256 :			bit$ @ swap cell/ -bit ;
1257 :	jwilke	1.67
1258 :			: (>image) ( taddr -- absaddr ) image @ + ;
1259 :
1260 :			DEFER >image
1261 :			DEFER relon
1262 :			DEFER reloff
1263 :			DEFER correcter
1264 :
1265 :			T has? relocate H
1266 :			[IF]
1267 :			' (relon) IS relon
1268 :			' (reloff) IS reloff
1269 :			' (>image) IS >image
1270 :			[ELSE]
1271 :			' drop IS relon
1272 :			' drop IS reloff
1273 :	jwilke	1.68	' (>regionimage) IS >image
1274 :	jwilke	1.67	[THEN]
1275 :	anton	1.1
1276 :			\ Target memory access 06oct92py
1277 :
1278 :			: align+ ( taddr -- rest )
1279 :	anton	1.48	tcell tuck 1- and - [ tcell 1- ] Literal and ;
1280 :	anton	1.22	: cfalign+ ( taddr -- rest )
1281 :	pazsan	1.39	\ see kernel.fs:cfaligned
1282 :	pazsan	1.43	/maxalign tuck 1- and - [ /maxalign 1- ] Literal and ;
1283 :	anton	1.1
1284 :			>TARGET
1285 :			: aligned ( taddr -- ta-addr ) dup align+ + ;
1286 :			\ assumes cell alignment granularity (as GNU C)
1287 :
1288 :	anton	1.22	: cfaligned ( taddr1 -- taddr2 )
1289 :	pazsan	1.39	\ see kernel.fs
1290 :	anton	1.22	dup cfalign+ + ;
1291 :
1292 :	jwilke	1.52	: @ ( taddr -- w ) >image S@ ;
1293 :			: ! ( w taddr -- ) >image S! ;
1294 :	pazsan	1.57	: c@ ( taddr -- char ) >image Sc@ ;
1295 :			: c! ( char taddr -- ) >image Sc! ;
1296 :	anton	1.7	: 2@ ( taddr -- x1 x2 ) T dup cell+ @ swap @ H ;
1297 :	pazsan	1.82	: 2! ( x1 x2 taddr -- ) T tuck ! cell+ ! H ;
1298 :	anton	1.1
1299 :			\ Target compilation primitives 06oct92py
1300 :			\ included A! 16may93jaw
1301 :
1302 :			: here ( -- there ) there ;
1303 :			: allot ( n -- ) tdp +! ;
1304 :	jwilke	1.78	: , ( w -- ) T here H tcell T allot ! H ;
1305 :			: c, ( char -- ) T here H tchar T allot c! H ;
1306 :			: align ( -- ) T here H align+ 0 ?DO bl T c, H tchar +LOOP ;
1307 :	anton	1.22	: cfalign ( -- )
1308 :	jwilke	1.78	T here H cfalign+ 0 ?DO bl T c, H tchar +LOOP ;
1309 :	anton	1.1
1310 :	jwilke	1.71	: >address dup 0>= IF tbyte / THEN ; \ ?? jaw
1311 :	pazsan	1.59	: A! swap >address swap dup relon T ! H ;
1312 :			: A, ( w -- ) >address T here H relon T , H ;
1313 :	anton	1.1
1314 :			>CROSS
1315 :
1316 :	jwilke	1.52	: tcmove ( source dest len -- )
1317 :			\G cmove in target memory
1318 :	pazsan	1.57	tchar * bounds
1319 :	jwilke	1.52	?DO dup T c@ H I T c! H 1+
1320 :	pazsan	1.57	tchar +LOOP drop ;
1321 :	anton	1.1
1322 :	jwilke	1.67	\ \ Load Assembler
1323 :
1324 :	anton	1.1	>TARGET
1325 :	jwilke	1.74	H also Forth definitions
1326 :	anton	1.1
1327 :	jwilke	1.77	: X bl word count [ ' target >wordlist ] Literal search-wordlist
1328 :	jwilke	1.52	IF state @ IF compile,
1329 :			ELSE execute THEN
1330 :	jwilke	1.77	ELSE -1 ABORT" Cross: access method not supported!"
1331 :			THEN ; immediate
1332 :	anton	1.1
1333 :	jwilke	1.52	[IFDEF] asm-include asm-include [THEN] hex
1334 :	anton	1.1
1335 :	jwilke	1.52	previous
1336 :			>CROSS H
1337 :	anton	1.1
1338 :	jwilke	1.52	\ \ -------------------- Compiler Plug Ins 01aug97jaw
1339 :	anton	1.1
1340 :	jwilke	1.52	>TARGET
1341 :			DEFER >body \ we need the system >body
1342 :			\ and the target >body
1343 :			>CROSS
1344 :			T 2 cells H VALUE xt>body
1345 :	pazsan	1.54	DEFER doprim, \ compiles start of a primitive
1346 :			DEFER docol, \ compiles start of a colon definition
1347 :	jwilke	1.52	DEFER doer,
1348 :			DEFER fini, \ compiles end of definition ;s
1349 :			DEFER doeshandler,
1350 :			DEFER dodoes,
1351 :
1352 :			DEFER ]comp \ starts compilation
1353 :			DEFER comp[ \ ends compilation
1354 :
1355 :	pazsan	1.94	: (prim) T a, H ; ' (prim) IS prim,
1356 :	pazsan	1.54
1357 :	pazsan	1.94	: (cr) >tempdp ]comp prim, comp[ tempdp> ; ' (cr) IS colon-resolve
1358 :	pazsan	1.54	: (ar) T ! H ; ' (ar) IS addr-resolve
1359 :			: (dr) ( ghost res-pnt target-addr addr )
1360 :			>tempdp drop over
1361 :			dup >magic @ <do:> =
1362 :			IF doer,
1363 :			ELSE dodoes,
1364 :			THEN
1365 :			tempdp> ; ' (dr) IS doer-resolve
1366 :
1367 :			: (cm) ( -- addr )
1368 :			T here align H
1369 :	pazsan	1.94	-1 prim, ; ' (cm) IS colonmark,
1370 :	anton	1.1
1371 :	jwilke	1.52	>TARGET
1372 :	pazsan	1.94	: compile, prim, ;
1373 :	jwilke	1.52	>CROSS
1374 :	anton	1.1
1375 :	jwilke	1.52	: refered ( ghost tag -- )
1376 :	jwilke	1.53	\G creates a resolve structure
1377 :	pazsan	1.54	T here aligned H swap (refered)
1378 :			;
1379 :
1380 :			: killref ( addr ghost -- )
1381 :			\G kills a forward reference to ghost at position addr
1382 :			\G this is used to eleminate a :dovar refence after making a DOES>
1383 :			dup >magic @ <fwd> <> IF 2drop EXIT THEN
1384 :			swap >r >link
1385 :			BEGIN dup @ dup ( addr last this )
1386 :			WHILE dup >taddr @ r@ =
1387 :			IF @ over !
1388 :			ELSE nip THEN
1389 :			REPEAT rdrop 2drop
1390 :	jwilke	1.53	;
1391 :	anton	1.48
1392 :	jwilke	1.52	Defer resolve-warning
1393 :	anton	1.1
1394 :	jwilke	1.52	: reswarn-test ( ghost res-struct -- ghost res-struct )
1395 :	jwilke	1.78	over cr ." Resolving " .ghost dup ." in " >ghost @ .ghost ;
1396 :	anton	1.1
1397 :	jwilke	1.52	: reswarn-forward ( ghost res-struct -- ghost res-struct )
1398 :	jwilke	1.78	over warnhead .ghost dup ." is referenced in "
1399 :			>ghost @ .ghost ;
1400 :	anton	1.1
1401 :	jwilke	1.52	\ ' reswarn-test IS resolve-warning
1402 :
1403 :	anton	1.1	\ resolve 14oct92py
1404 :
1405 :	pazsan	1.54	: resolve-loop ( ghost resolve-list tcfa -- )
1406 :			>r
1407 :			BEGIN dup WHILE
1408 :			\ dup >tag @ 2 = IF reswarn-forward THEN
1409 :			resolve-warning
1410 :			r@ over >taddr @
1411 :			2 pick >tag @
1412 :			CASE 0 OF colon-resolve ENDOF
1413 :			1 OF addr-resolve ENDOF
1414 :			2 OF doer-resolve ENDOF
1415 :			ENDCASE
1416 :			@ \ next list element
1417 :			REPEAT 2drop rdrop
1418 :			;
1419 :	jwilke	1.52
1420 :			\ : resolve-loop ( ghost tcfa -- ghost tcfa )
1421 :			\ >r dup >link @
1422 :			\ BEGIN dup WHILE dup T @ H r@ rot T ! H REPEAT drop r> ;
1423 :	anton	1.1
1424 :			\ exists 9may93jaw
1425 :
1426 :	jwilke	1.52	Variable TWarnings
1427 :			TWarnings on
1428 :			Variable Exists-Warnings
1429 :			Exists-Warnings on
1430 :
1431 :	anton	1.1	: exists ( ghost tcfa -- )
1432 :			over GhostNames
1433 :			BEGIN @ dup
1434 :			WHILE 2dup cell+ @ =
1435 :			UNTIL
1436 :	jwilke	1.52	2 cells + count
1437 :			TWarnings @ Exists-Warnings @ and
1438 :			IF warnhead type ." exists"
1439 :			ELSE 2drop THEN
1440 :			drop swap >link !
1441 :	pazsan	1.24	ELSE true abort" CROSS: Ghostnames inconsistent "
1442 :	anton	1.1	THEN ;
1443 :
1444 :	pazsan	1.94	: colon-resolved ( ghost -- )
1445 :			>link @ colon, ; \ compile-call
1446 :			: prim-resolved ( ghost -- )
1447 :			>link @ prim, ;
1448 :	pazsan	1.93
1449 :	anton	1.1	: resolve ( ghost tcfa -- )
1450 :	pazsan	1.54	\G resolve referencies to ghost with tcfa
1451 :			\ is ghost resolved?, second resolve means another definition with the
1452 :			\ same name
1453 :	jwilke	1.75	over undefined? 0= IF exists EXIT THEN
1454 :	pazsan	1.54	\ get linked-list
1455 :			swap >r r@ >link @ swap \ ( list tcfa R: ghost )
1456 :			\ mark ghost as resolved
1457 :			dup r@ >link ! <res> r@ >magic !
1458 :	pazsan	1.94	r@ >comp @ ['] is-forward = IF
1459 :			['] prim-resolved r@ >comp ! THEN
1460 :	pazsan	1.54	\ loop through forward referencies
1461 :			r> -rot
1462 :			comp-state @ >r Resolving comp-state !
1463 :			resolve-loop
1464 :			r> comp-state !
1465 :
1466 :			['] noop IS resolve-warning
1467 :	jwilke	1.52	;
1468 :	anton	1.1
1469 :			\ gexecute ghost, 01nov92py
1470 :
1471 :	jwilke	1.52	: gexecute ( ghost -- )
1472 :	pazsan	1.93	dup >comp @ execute ;
1473 :	jwilke	1.52
1474 :			: addr, ( ghost -- )
1475 :	pazsan	1.93	dup forward? IF 1 refered 0 T a, H ELSE >link @ T a, H THEN ;
1476 :	jwilke	1.52
1477 :			\ !! : ghost, ghost gexecute ;
1478 :	anton	1.1
1479 :			\ .unresolved 11may93jaw
1480 :
1481 :			variable ResolveFlag
1482 :
1483 :			\ ?touched 11may93jaw
1484 :
1485 :	jwilke	1.52	: ?touched ( ghost -- flag ) dup forward? swap >link @
1486 :	anton	1.1	0 <> and ;
1487 :
1488 :	jwilke	1.53	: .forwarddefs ( ghost -- )
1489 :			." appeared in:"
1490 :			>link
1491 :			BEGIN @ dup
1492 :			WHILE cr 5 spaces
1493 :	jwilke	1.78	dup >ghost @ .ghost
1494 :	jwilke	1.53	." file " dup >file @ ?dup IF count type ELSE ." CON" THEN
1495 :			." line " dup >line @ .dec
1496 :			REPEAT
1497 :			drop ;
1498 :
1499 :	anton	1.1	: ?resolved ( ghostname -- )
1500 :			dup cell+ @ ?touched
1501 :	jwilke	1.53	IF dup
1502 :			cell+ cell+ count cr type ResolveFlag on
1503 :			cell+ @ .forwarddefs
1504 :			ELSE drop
1505 :			THEN ;
1506 :	anton	1.1
1507 :			: .unresolved ( -- )
1508 :			ResolveFlag off cr ." Unresolved: "
1509 :			Ghostnames
1510 :			BEGIN @ dup
1511 :			WHILE dup ?resolved
1512 :	anton	1.10	REPEAT drop ResolveFlag @
1513 :			IF
1514 :	anton	1.48	-1 abort" Unresolved words!"
1515 :	anton	1.10	ELSE
1516 :			." Nothing!"
1517 :			THEN
1518 :			cr ;
1519 :	anton	1.1
1520 :	jwilke	1.52	: .stats
1521 :			base @ >r decimal
1522 :			cr ." named Headers: " headers-named @ .
1523 :			r> base ! ;
1524 :
1525 :	jwilke	1.79	>MINIMAL
1526 :
1527 :			: .unresolved .unresolved ;
1528 :
1529 :	anton	1.1	>CROSS
1530 :			\ Header states 12dec92py
1531 :
1532 :	pazsan	1.90	bigendian [IF] 0 [ELSE] tcell 1- [THEN] Constant flag+
1533 :			: flag! ( w -- ) tlast @ flag+ + dup >r T c@ xor r> c! H ;
1534 :	anton	1.1
1535 :			VARIABLE ^imm
1536 :
1537 :	anton	1.89	\ !! should be target wordsize specific
1538 :	pazsan	1.90	$80 constant alias-mask
1539 :			$40 constant immediate-mask
1540 :			$20 constant restrict-mask
1541 :	anton	1.89
1542 :	anton	1.1	>TARGET
1543 :	anton	1.89	: immediate immediate-mask flag!
1544 :	pazsan	1.18	^imm @ @ dup <imm> = IF drop EXIT THEN
1545 :	anton	1.1	<res> <> ABORT" CROSS: Cannot immediate a unresolved word"
1546 :			<imm> ^imm @ ! ;
1547 :	anton	1.89	: restrict restrict-mask flag! ;
1548 :	jwilke	1.52
1549 :	pazsan	1.54	: isdoer
1550 :			\G define a forth word as doer, this makes obviously only sence on
1551 :			\G forth processors such as the PSC1000
1552 :			<do:> last-header-ghost @ >magic ! ;
1553 :	anton	1.1	>CROSS
1554 :
1555 :			\ Target Header Creation 01nov92py
1556 :
1557 :	jwilke	1.52	>TARGET
1558 :	anton	1.1	: string, ( addr count -- )
1559 :	anton	1.89	dup T c, H bounds ?DO I c@ T c, H LOOP ;
1560 :			: lstring, ( addr count -- )
1561 :			dup T , H bounds ?DO I c@ T c, H LOOP ;
1562 :			: name, ( "name" -- ) bl word count T lstring, cfalign H ;
1563 :	anton	1.1	: view, ( -- ) ( dummy ) ;
1564 :	jwilke	1.52	>CROSS
1565 :	anton	1.1
1566 :	pazsan	1.25	\ Target Document Creation (goes to crossdoc.fd) 05jul95py
1567 :
1568 :	pazsan	1.55	s" ./doc/crossdoc.fd" r/w create-file throw value doc-file-id
1569 :	pazsan	1.25	\ contains the file-id of the documentation file
1570 :
1571 :	pazsan	1.40	: T-\G ( -- )
1572 :	pazsan	1.25	source >in @ /string doc-file-id write-line throw
1573 :	pazsan	1.40	postpone \ ;
1574 :	pazsan	1.25
1575 :	pazsan	1.39	Variable to-doc to-doc on
1576 :	pazsan	1.25
1577 :			: cross-doc-entry ( -- )
1578 :			to-doc @ tlast @ 0<> and \ not an anonymous (i.e. noname) header
1579 :			IF
1580 :			s" " doc-file-id write-line throw
1581 :			s" make-doc " doc-file-id write-file throw
1582 :	jwilke	1.77
1583 :			tlast @ >image count 1F and doc-file-id write-file throw
1584 :	pazsan	1.25	>in @
1585 :			[char] ( parse 2drop
1586 :			[char] ) parse doc-file-id write-file throw
1587 :			s" )" doc-file-id write-file throw
1588 :			[char] \ parse 2drop
1589 :	pazsan	1.40	T-\G
1590 :	pazsan	1.25	>in !
1591 :	pazsan	1.39	THEN ;
1592 :	pazsan	1.25
1593 :	pazsan	1.28	\ Target TAGS creation
1594 :
1595 :	pazsan	1.39	s" kernel.TAGS" r/w create-file throw value tag-file-id
1596 :	pazsan	1.28	\ contains the file-id of the tags file
1597 :
1598 :			Create tag-beg 2 c, 7F c, bl c,
1599 :			Create tag-end 2 c, bl c, 01 c,
1600 :			Create tag-bof 1 c, 0C c,
1601 :
1602 :			2variable last-loadfilename 0 0 last-loadfilename 2!
1603 :
1604 :			: put-load-file-name ( -- )
1605 :	jwilke	1.77	sourcefilename last-loadfilename 2@ d<>
1606 :	pazsan	1.28	IF
1607 :			tag-bof count tag-file-id write-line throw
1608 :	anton	1.31	sourcefilename 2dup
1609 :	pazsan	1.28	tag-file-id write-file throw
1610 :			last-loadfilename 2!
1611 :			s" ,0" tag-file-id write-line throw
1612 :			THEN ;
1613 :
1614 :			: cross-tag-entry ( -- )
1615 :			tlast @ 0<> \ not an anonymous (i.e. noname) header
1616 :			IF
1617 :			put-load-file-name
1618 :			source >in @ min tag-file-id write-file throw
1619 :			tag-beg count tag-file-id write-file throw
1620 :	jwilke	1.77	tlast @ >image count 1F and tag-file-id write-file throw
1621 :	pazsan	1.28	tag-end count tag-file-id write-file throw
1622 :	anton	1.31	base @ decimal sourceline# 0 <# #s #> tag-file-id write-file throw
1623 :	pazsan	1.28	\ >in @ 0 <# #s [char] , hold #> tag-file-id write-line throw
1624 :			s" ,0" tag-file-id write-line throw
1625 :			base !
1626 :			THEN ;
1627 :
1628 :	pazsan	1.43	\ Check for words
1629 :
1630 :			Defer skip? ' false IS skip?
1631 :
1632 :	jwilke	1.75	: skipdef ( <name> -- )
1633 :	jwilke	1.79	\G skip definition of an undefined word in undef-words and
1634 :			\G all-words mode
1635 :	jwilke	1.75	ghost dup forward?
1636 :			IF >magic <skip> swap !
1637 :			ELSE drop THEN ;
1638 :
1639 :	jwilke	1.77	: tdefined? ( -- flag ) \ name
1640 :	jwilke	1.75	ghost undefined? 0= ;
1641 :
1642 :			: defined2? ( -- flag ) \ name
1643 :			\G return true for anything else than forward, even for <skip>
1644 :			\G that's what we want
1645 :	jwilke	1.52	ghost forward? 0= ;
1646 :	pazsan	1.43
1647 :	jwilke	1.79	: forced? ( -- flag ) \ name
1648 :			\G return ture if it is a foreced skip with defskip
1649 :			ghost >magic @ <skip> = ;
1650 :
1651 :	pazsan	1.43	: needed? ( -- flag ) \ name
1652 :	anton	1.48	\G returns a false flag when
1653 :			\G a word is not defined
1654 :			\G a forward reference exists
1655 :			\G so the definition is not skipped!
1656 :			bl word gfind
1657 :	jwilke	1.75	IF dup undefined?
1658 :	anton	1.48	nip
1659 :			0=
1660 :			ELSE drop true THEN ;
1661 :	pazsan	1.43
1662 :	pazsan	1.44	: doer? ( -- flag ) \ name
1663 :			ghost >magic @ <do:> = ;
1664 :
1665 :	pazsan	1.43	: skip-defs ( -- )
1666 :			BEGIN refill WHILE source -trailing nip 0= UNTIL THEN ;
1667 :
1668 :	pazsan	1.28	\ Target header creation
1669 :
1670 :	pazsan	1.54	Variable NoHeaderFlag
1671 :			NoHeaderFlag off
1672 :	anton	1.1
1673 :	pazsan	1.54	: 0.r ( n1 n2 -- )
1674 :			base @ >r hex
1675 :			0 swap <# 0 ?DO # LOOP #> type
1676 :			r> base ! ;
1677 :	jwilke	1.84
1678 :			: .sym ( adr len -- )
1679 :			\G escapes / and \ to produce sed output
1680 :	jwilke	1.52	bounds
1681 :			DO I c@ dup
1682 :	jwilke	1.77	CASE [char] / OF drop ." \/" ENDOF
1683 :			[char] \ OF drop ." \\" ENDOF
1684 :	jwilke	1.52	dup OF emit ENDOF
1685 :			ENDCASE
1686 :	pazsan	1.54	LOOP ;
1687 :	jwilke	1.52
1688 :	pazsan	1.43	: (Theader ( "name" -- ghost )
1689 :	pazsan	1.54	\ >in @ bl word count type 2 spaces >in !
1690 :			\ wordheaders will always be compiled to rom
1691 :			switchrom
1692 :			\ build header in target
1693 :			NoHeaderFlag @
1694 :			IF NoHeaderFlag off
1695 :			ELSE
1696 :			T align H view,
1697 :	jwilke	1.78	tlast @ dup 0> IF tcell - THEN T A, H there tlast !
1698 :	pazsan	1.54	1 headers-named +! \ Statistic
1699 :			>in @ T name, H >in !
1700 :			THEN
1701 :			T cfalign here H tlastcfa !
1702 :	jwilke	1.84	\ Old Symbol table sed-script
1703 :	pazsan	1.54	\ >in @ cr ." sym:s/CFA=" there 4 0.r ." /" bl word count .sym ." /g" cr >in !
1704 :	jwilke	1.78	ghost
1705 :	jwilke	1.84	\ output symbol table to extra file
1706 :			[ [IFDEF] fd-symbol-table ]
1707 :			base @ hex there s>d <# 8 0 DO # LOOP #> fd-symbol-table write-file throw base !
1708 :			s" :" fd-symbol-table write-file throw
1709 :			dup >ghostname fd-symbol-table write-line throw
1710 :			[ [THEN] ]
1711 :	pazsan	1.54	dup Last-Header-Ghost !
1712 :			dup >magic ^imm ! \ a pointer for immediate
1713 :			Already @
1714 :			IF dup >end tdoes !
1715 :			ELSE 0 tdoes !
1716 :			THEN
1717 :	anton	1.89	alias-mask flag!
1718 :	pazsan	1.54	cross-doc-entry cross-tag-entry ;
1719 :	anton	1.1
1720 :			VARIABLE ;Resolve 1 cells allot
1721 :	jwilke	1.52	\ this is the resolver information from ":"
1722 :			\ resolving is done by ";"
1723 :	anton	1.1
1724 :	pazsan	1.11	: Theader ( "name" -- ghost )
1725 :			(THeader dup there resolve 0 ;Resolve ! ;
1726 :	anton	1.1
1727 :			>TARGET
1728 :			: Alias ( cfa -- ) \ name
1729 :	pazsan	1.43	>in @ skip? IF 2drop EXIT THEN >in !
1730 :	jwilke	1.53	dup 0< s" prims" T $has? H 0= and
1731 :	pazsan	1.43	IF
1732 :	jwilke	1.53	.sourcepos ." needs prim: " >in @ bl word count type >in ! cr
1733 :	pazsan	1.43	THEN
1734 :	anton	1.89	(THeader over resolve T A, H alias-mask flag! ;
1735 :	pazsan	1.42	: Alias: ( cfa -- ) \ name
1736 :	pazsan	1.43	>in @ skip? IF 2drop EXIT THEN >in !
1737 :	jwilke	1.53	dup 0< s" prims" T $has? H 0= and
1738 :	pazsan	1.43	IF
1739 :	jwilke	1.53	.sourcepos ." needs doer: " >in @ bl word count type >in ! cr
1740 :	pazsan	1.43	THEN
1741 :			ghost tuck swap resolve <do:> swap >magic ! ;
1742 :	pazsan	1.64
1743 :			Variable prim#
1744 :			: first-primitive ( n -- ) prim# ! ;
1745 :			: Primitive ( -- ) \ name
1746 :			prim# @ T Alias H -1 prim# +! ;
1747 :	anton	1.1	>CROSS
1748 :
1749 :			\ Conditionals and Comments 11may93jaw
1750 :
1751 :			: ;Cond
1752 :			postpone ;
1753 :			swap ! ; immediate
1754 :
1755 :			: Cond: ( -- ) \ name {code } ;
1756 :			atonce on
1757 :			ghost
1758 :			>exec
1759 :			:NONAME ;
1760 :
1761 :			: restrict? ( -- )
1762 :			\ aborts on interprete state - ae
1763 :			state @ 0= ABORT" CROSS: Restricted" ;
1764 :
1765 :			: Comment ( -- )
1766 :			>in @ atonce on ghost swap >in ! ' swap >exec ! ;
1767 :
1768 :			Comment ( Comment \
1769 :
1770 :			\ compile 10may93jaw
1771 :
1772 :			: compile ( -- ) \ name
1773 :			restrict?
1774 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile "
1775 :	anton	1.1	0> ( immediate? )
1776 :			IF >exec @ compile,
1777 :			ELSE postpone literal postpone gexecute THEN ;
1778 :			immediate
1779 :
1780 :	pazsan	1.96	T has? peephole H [IF]
1781 :	pazsan	1.95	: (cc) compile call T >body a, H ; ' (cc) IS colon,
1782 :	pazsan	1.96	[ELSE]
1783 :			' (prim) IS colon,
1784 :			[THEN]
1785 :	pazsan	1.94
1786 :	jwilke	1.52	: [G']
1787 :			\G ticks a ghost and returns its address
1788 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1789 :			state @
1790 :			IF postpone literal
1791 :			THEN ; immediate
1792 :
1793 :			: ghost>cfa
1794 :	jwilke	1.75	dup undefined? ABORT" CROSS: forward " >link @ ;
1795 :	jwilke	1.52
1796 :			>TARGET
1797 :
1798 :			: ' ( -- cfa )
1799 :			\ returns the target-cfa of a ghost
1800 :			bl word gfind 0= ABORT" CROSS: Ghost don't exists"
1801 :			ghost>cfa ;
1802 :
1803 :			Cond: ['] T ' H alit, ;Cond
1804 :
1805 :			>CROSS
1806 :
1807 :			: [T']
1808 :			\ returns the target-cfa of a ghost, or compiles it as literal
1809 :			postpone [G'] state @ IF postpone ghost>cfa ELSE ghost>cfa THEN ; immediate
1810 :	pazsan	1.42
1811 :	jwilke	1.52	\ \ threading modell 13dec92py
1812 :			\ modularized 14jun97jaw
1813 :
1814 :			: fillcfa ( usedcells -- )
1815 :	jwilke	1.78	T cells H xt>body swap - 0 ?DO 0 X c, tchar +LOOP ;
1816 :	jwilke	1.52
1817 :			: (>body) ( cfa -- pfa ) xt>body + ; ' (>body) T IS >body H
1818 :
1819 :	pazsan	1.94	: (doer,) ( ghost -- ) ]comp addr, comp[ 1 fillcfa ; ' (doer,) IS doer,
1820 :	jwilke	1.52
1821 :			: (docol,) ( -- ) [G'] :docol doer, ; ' (docol,) IS docol,
1822 :
1823 :			: (doprim,) ( -- )
1824 :			there xt>body + ca>native T a, H 1 fillcfa ; ' (doprim,) IS doprim,
1825 :
1826 :			: (doeshandler,) ( -- )
1827 :			T cfalign H compile :doesjump T 0 , H ; ' (doeshandler,) IS doeshandler,
1828 :
1829 :			: (dodoes,) ( does-action-ghost -- )
1830 :			]comp [G'] :dodoes gexecute comp[
1831 :			addr,
1832 :			T here H tcell - reloff 2 fillcfa ; ' (dodoes,) IS dodoes,
1833 :
1834 :			: (lit,) ( n -- ) compile lit T , H ; ' (lit,) IS lit,
1835 :
1836 :	jwilke	1.67	\ if we dont produce relocatable code alit, defaults to lit, jaw
1837 :	jwilke	1.84	\ this is just for convenience, so we don't have to define alit,
1838 :			\ seperately for embedded systems....
1839 :			T has? relocate H
1840 :	jwilke	1.67	[IF]
1841 :	pazsan	1.66	: (alit,) ( n -- ) compile lit T a, H ; ' (alit,) IS alit,
1842 :	jwilke	1.67	[ELSE]
1843 :			: (alit,) ( n -- ) lit, ; ' (alit,) IS alit,
1844 :			[THEN]
1845 :	jwilke	1.52
1846 :			: (fini,) compile ;s ; ' (fini,) IS fini,
1847 :	pazsan	1.42
1848 :	pazsan	1.43	[IFUNDEF] (code)
1849 :			Defer (code)
1850 :			Defer (end-code)
1851 :			[THEN]
1852 :
1853 :	anton	1.1	>TARGET
1854 :	pazsan	1.43	: Code
1855 :	jwilke	1.52	defempty?
1856 :	anton	1.48	(THeader there resolve
1857 :	jwilke	1.53	[ T e? prims H 0= [IF] T e? ITC H [ELSE] true [THEN] ] [IF]
1858 :	jwilke	1.52	doprim,
1859 :	anton	1.48	[THEN]
1860 :			depth (code) ;
1861 :	pazsan	1.43
1862 :			: Code:
1863 :	jwilke	1.52	defempty?
1864 :	anton	1.48	ghost dup there ca>native resolve <do:> swap >magic !
1865 :	pazsan	1.43	depth (code) ;
1866 :
1867 :			: end-code
1868 :	jwilke	1.52	(end-code)
1869 :	pazsan	1.43	depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1870 :			ELSE true ABORT" CROSS: Stack empty" THEN
1871 :	jwilke	1.52	;
1872 :	anton	1.14
1873 :	anton	1.1	>CROSS
1874 :	jwilke	1.52
1875 :	anton	1.1	\ tLiteral 12dec92py
1876 :
1877 :			>TARGET
1878 :	pazsan	1.40	Cond: \G T-\G ;Cond
1879 :
1880 :	anton	1.1	Cond: Literal ( n -- ) restrict? lit, ;Cond
1881 :			Cond: ALiteral ( n -- ) restrict? alit, ;Cond
1882 :
1883 :			: Char ( "<char>" -- ) bl word char+ c@ ;
1884 :			Cond: [Char] ( "<char>" -- ) restrict? Char lit, ;Cond
1885 :
1886 :	pazsan	1.43	\ some special literals 27jan97jaw
1887 :
1888 :	jwilke	1.52	\ !! Known Bug: Special Literals and plug-ins work only correct
1889 :	pazsan	1.93	\ on targets with char = 8 bit
1890 :	jwilke	1.52
1891 :	pazsan	1.43	Cond: MAXU
1892 :	jwilke	1.52	restrict?
1893 :	pazsan	1.93	compile lit tcell 0 ?DO FF T c, H LOOP
1894 :	jwilke	1.52	;Cond
1895 :	pazsan	1.43
1896 :			Cond: MINI
1897 :	jwilke	1.52	restrict?
1898 :	pazsan	1.93	compile lit bigendian
1899 :			IF 80 T c, H tcell 1 ?DO 0 T c, H LOOP
1900 :			ELSE tcell 1 ?DO 0 T c, H LOOP 80 T c, H
1901 :			THEN
1902 :	jwilke	1.52	;Cond
1903 :	pazsan	1.43
1904 :			Cond: MAXI
1905 :	jwilke	1.52	restrict?
1906 :	pazsan	1.93	compile lit bigendian
1907 :			IF 7F T c, H tcell 1 ?DO FF T c, H LOOP
1908 :			ELSE tcell 1 ?DO FF T c, H LOOP 7F T c, H
1909 :			THEN
1910 :	pazsan	1.43	;Cond
1911 :
1912 :	anton	1.1	>CROSS
1913 :			\ Target compiling loop 12dec92py
1914 :			\ ">tib trick thrown out 10may93jaw
1915 :			\ number? defined at the top 11may93jaw
1916 :	jwilke	1.77	\ replaced >in by save-input
1917 :
1918 :			: discard 0 ?DO drop LOOP ;
1919 :	anton	1.1
1920 :			\ compiled word might leave items on stack!
1921 :	jwilke	1.77	: tcom ( x1 .. xn n name -- )
1922 :			\ dup count type space
1923 :			gfind ?dup
1924 :			IF >r >r discard r> r>
1925 :			0> IF >exec @ execute
1926 :			ELSE gexecute THEN
1927 :			EXIT
1928 :			THEN
1929 :			number? dup
1930 :			IF 0> IF swap lit, THEN lit, discard
1931 :			ELSE 2drop restore-input throw ghost gexecute THEN ;
1932 :	anton	1.1
1933 :			>TARGET
1934 :			\ : ; DOES> 13dec92py
1935 :			\ ] 9may93py/jaw
1936 :
1937 :			: ] state on
1938 :	pazsan	1.54	Compiling comp-state !
1939 :	anton	1.1	BEGIN
1940 :	jwilke	1.77	BEGIN save-input bl word
1941 :			dup c@ 0= WHILE drop discard refill 0=
1942 :	anton	1.1	ABORT" CROSS: End of file while target compiling"
1943 :			REPEAT
1944 :			tcom
1945 :			state @
1946 :			0=
1947 :			UNTIL ;
1948 :
1949 :			\ by the way: defining a second interpreter (a compiler-)loop
1950 :			\ is not allowed if a system should be ans conform
1951 :
1952 :			: : ( -- colon-sys ) \ Name
1953 :	jwilke	1.52	defempty?
1954 :			constflag off \ don't let this flag work over colon defs
1955 :			\ just to go sure nothing unwanted happens
1956 :	pazsan	1.43	>in @ skip? IF drop skip-defs EXIT THEN >in !
1957 :	anton	1.1	(THeader ;Resolve ! there ;Resolve cell+ !
1958 :	jwilke	1.52	docol, ]comp depth T ] H ;
1959 :	anton	1.1
1960 :	pazsan	1.37	: :noname ( -- colon-sys )
1961 :	jwilke	1.52	T cfalign H there docol, 0 ;Resolve ! depth T ] H ;
1962 :	pazsan	1.37
1963 :	pazsan	1.2	Cond: EXIT ( -- ) restrict? compile ;S ;Cond
1964 :	anton	1.6
1965 :			Cond: ?EXIT ( -- ) 1 abort" CROSS: using ?exit" ;Cond
1966 :	pazsan	1.2
1967 :	jwilke	1.52	>CROSS
1968 :			: LastXT ;Resolve @ 0= abort" CROSS: no definition for LastXT"
1969 :			;Resolve cell+ @ ;
1970 :
1971 :			>TARGET
1972 :
1973 :			Cond: recurse ( -- ) Last-Ghost @ gexecute ;Cond
1974 :
1975 :	anton	1.1	Cond: ; ( -- ) restrict?
1976 :			depth ?dup IF 1- <> ABORT" CROSS: Stack changed"
1977 :			ELSE true ABORT" CROSS: Stack empty" THEN
1978 :	jwilke	1.52	fini,
1979 :			comp[
1980 :			state off
1981 :	anton	1.1	;Resolve @
1982 :	pazsan	1.94	IF ;Resolve @ ;Resolve cell+ @ resolve
1983 :	pazsan	1.95	['] colon-resolved ;Resolve @ >comp ! THEN
1984 :	pazsan	1.54	Interpreting comp-state !
1985 :	anton	1.1	;Cond
1986 :	pazsan	1.54	Cond: [ restrict? state off Interpreting comp-state ! ;Cond
1987 :	anton	1.1
1988 :			>CROSS
1989 :	pazsan	1.54
1990 :			Create GhostDummy ghostheader
1991 :			<res> GhostDummy >magic !
1992 :
1993 :	jwilke	1.52	: !does ( does-action -- )
1994 :			\ !! zusammenziehen und dodoes, machen!
1995 :	pazsan	1.54	tlastcfa @ [G'] :dovar killref
1996 :			\ tlastcfa @ dup there >r tdp ! compile :dodoes r> tdp ! T cell+ ! H ;
1997 :	jwilke	1.52	\ !! geht so nicht, da dodoes, ghost will!
1998 :	pazsan	1.54	GhostDummy >link ! GhostDummy
1999 :			tlastcfa @ >tempdp dodoes, tempdp> ;
2000 :	anton	1.1
2001 :	pazsan	1.95	: g>body ( ghost -- body )
2002 :			>link @ T >body H ;
2003 :			: does-resolved ( ghost -- )
2004 :			dup g>body alit, >end @ g>body colon, ;
2005 :
2006 :	anton	1.1	>TARGET
2007 :			Cond: DOES> restrict?
2008 :	jwilke	1.52	compile (does>) doeshandler,
2009 :			\ resolve words made by builders
2010 :	pazsan	1.95	tdoes @ ?dup IF @ dup T here H resolve
2011 :			['] prim-resolved swap >comp ! THEN
2012 :	anton	1.1	;Cond
2013 :	jwilke	1.52	: DOES> switchrom doeshandler, T here H !does depth T ] H ;
2014 :	anton	1.1
2015 :			>CROSS
2016 :			\ Creation 01nov92py
2017 :
2018 :			\ Builder 11may93jaw
2019 :
2020 :	pazsan	1.94	: Builder ( Create-xt do-ghost "name" -- )
2021 :	jwilke	1.52	\ builds up a builder in current vocabulary
2022 :			\ create-xt is executed when word is interpreted
2023 :			\ do:-xt is executet when the created word from builder is executed
2024 :			\ for do:-xt an additional entry after the normal ghost-enrys is used
2025 :
2026 :	pazsan	1.94	Make-Ghost ( Create-xt do-ghost ghost )
2027 :			rot swap ( do-ghost Create-xt ghost )
2028 :	jwilke	1.78	>exec ! , ;
2029 :	anton	1.1
2030 :	jwilke	1.52	: gdoes, ( ghost -- )
2031 :			\ makes the codefield for a word that is built
2032 :	jwilke	1.75	>end @ dup undefined? 0=
2033 :	jwilke	1.52	IF
2034 :	pazsan	1.42	dup >magic @ <do:> =
2035 :	pazsan	1.54	IF doer,
2036 :			ELSE dodoes,
2037 :			THEN
2038 :			EXIT
2039 :	jwilke	1.52	THEN
2040 :			\ compile :dodoes gexecute
2041 :			\ T here H tcell - reloff
2042 :	pazsan	1.54	2 refered
2043 :			0 fillcfa
2044 :			;
2045 :	anton	1.1
2046 :	jwilke	1.52	: TCreate ( <name> -- )
2047 :			executed-ghost @
2048 :			create-forward-warn
2049 :			IF ['] reswarn-forward IS resolve-warning THEN
2050 :	pazsan	1.96	Theader >r dup , dup gdoes,
2051 :	jwilke	1.77	\ stores execution semantic in the built word
2052 :	jwilke	1.78	\ if the word already has a semantic (concerns S", IS, .", DOES>)
2053 :			\ then keep it
2054 :	pazsan	1.93	>end @
2055 :			dup >exec @ r@ >exec dup @ ['] NoExec = IF ! ELSE 2drop THEN
2056 :			>comp @ r> >comp ! ;
2057 :	jwilke	1.52
2058 :			: RTCreate ( <name> -- )
2059 :			\ creates a new word with code-field in ram
2060 :			executed-ghost @
2061 :			create-forward-warn
2062 :			IF ['] reswarn-forward IS resolve-warning THEN
2063 :			\ make Alias
2064 :	anton	1.89	(THeader there 0 T a, H alias-mask flag! ( S executed-ghost new-ghost )
2065 :	jwilke	1.52	\ store poiter to code-field
2066 :			switchram T cfalign H
2067 :			there swap T ! H
2068 :			there tlastcfa !
2069 :			dup there resolve 0 ;Resolve !
2070 :			>r dup gdoes,
2071 :	jwilke	1.78	\ stores execution semantic in the built word
2072 :			\ if the word already has a semantic (concerns S", IS, .", DOES>)
2073 :			\ then keep it
2074 :			>end @ >exec @ r> >exec dup @ ['] NoExec =
2075 :			IF ! ELSE 2drop THEN ;
2076 :	anton	1.1
2077 :			: Build: ( -- [xt] [colon-sys] )
2078 :	jwilke	1.52	:noname postpone TCreate ;
2079 :
2080 :			: BuildSmart: ( -- [xt] [colon-sys] )
2081 :			:noname
2082 :	jwilke	1.53	[ T has? rom H [IF] ]
2083 :	jwilke	1.52	postpone RTCreate
2084 :			[ [ELSE] ]
2085 :			postpone TCreate
2086 :			[ [THEN] ] ;
2087 :	anton	1.1
2088 :			: gdoes> ( ghost -- addr flag )
2089 :	jwilke	1.52	executed-ghost @
2090 :	anton	1.1	state @ IF gexecute true EXIT THEN
2091 :	pazsan	1.93	g>body false ;
2092 :	anton	1.1
2093 :			\ DO: ;DO 11may93jaw
2094 :			\ changed to ?EXIT 10may93jaw
2095 :
2096 :	pazsan	1.93	: DO: ( -- ghost [xt] [colon-sys] )
2097 :	anton	1.1	here ghostheader
2098 :	pazsan	1.11	:noname postpone gdoes> postpone ?EXIT ;
2099 :	anton	1.1
2100 :	pazsan	1.93	: by: ( -- ghost [xt] [colon-sys] ) \ name
2101 :	pazsan	1.42	ghost
2102 :			:noname postpone gdoes> postpone ?EXIT ;
2103 :
2104 :	pazsan	1.93	: ;DO ( ghost [xt] [colon-sys] -- ghost )
2105 :	anton	1.1	postpone ; ( S addr xt )
2106 :			over >exec ! ; immediate
2107 :
2108 :	pazsan	1.96	T has? peephole H [IF]
2109 :	pazsan	1.93	: compile: ( ghost -- ghost [xt] [colon-sys] )
2110 :			:noname postpone g>body ;
2111 :			: ;compile ( ghost [xt] [colon-sys] -- ghost )
2112 :	pazsan	1.94	postpone ; over >comp ! ; immediate
2113 :	pazsan	1.96	[ELSE]
2114 :			: compile: ( ghost -- ghost xt colon-sys ) :noname ;
2115 :			: ;compile ( ghost xt colon-sys -- ghost )
2116 :			postpone ; drop ; immediate
2117 :			[THEN]
2118 :	pazsan	1.93
2119 :			: by ( -- ghost ) \ Name
2120 :	anton	1.1	ghost >end @ ;
2121 :
2122 :			>TARGET
2123 :			\ Variables and Constants 05dec92py
2124 :
2125 :	jwilke	1.52	Build: ( n -- ) ;
2126 :			by: :docon ( ghost -- n ) T @ H ;DO
2127 :	pazsan	1.94	compile: alit, compile @ ;compile
2128 :	jwilke	1.52	Builder (Constant)
2129 :
2130 :			Build: ( n -- ) T , H ;
2131 :			by (Constant)
2132 :			Builder Constant
2133 :
2134 :			Build: ( n -- ) T A, H ;
2135 :			by (Constant)
2136 :			Builder AConstant
2137 :
2138 :			Build: ( d -- ) T , , H ;
2139 :			DO: ( ghost -- d ) T dup cell+ @ swap @ H ;DO
2140 :			Builder 2Constant
2141 :
2142 :			BuildSmart: ;
2143 :	pazsan	1.42	by: :dovar ( ghost -- addr ) ;DO
2144 :	pazsan	1.95	\ compile: alit, ;compile
2145 :	anton	1.1	Builder Create
2146 :
2147 :	jwilke	1.53	T has? rom H [IF]
2148 :	pazsan	1.54	Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
2149 :	jwilke	1.52	by (Constant)
2150 :			Builder Variable
2151 :			[ELSE]
2152 :	anton	1.1	Build: T 0 , H ;
2153 :			by Create
2154 :	pazsan	1.96	\ compile: alit, ;compile
2155 :	anton	1.1	Builder Variable
2156 :	jwilke	1.52	[THEN]
2157 :	anton	1.1
2158 :	jwilke	1.53	T has? rom H [IF]
2159 :	pazsan	1.54	Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , 0 , H ( switchrom ) ;
2160 :			by (Constant)
2161 :			Builder 2Variable
2162 :			[ELSE]
2163 :			Build: T 0 , 0 , H ;
2164 :			by Create
2165 :	pazsan	1.96	\ compile: alit, ;compile
2166 :	pazsan	1.54	Builder 2Variable
2167 :			[THEN]
2168 :
2169 :			T has? rom H [IF]
2170 :			Build: ( -- ) T here 0 , H switchram T align here swap ! 0 , H ( switchrom ) ;
2171 :	jwilke	1.52	by (Constant)
2172 :			Builder AVariable
2173 :			[ELSE]
2174 :	anton	1.1	Build: T 0 A, H ;
2175 :			by Create
2176 :	pazsan	1.96	\ compile: alit, ;compile
2177 :	anton	1.1	Builder AVariable
2178 :	jwilke	1.52	[THEN]
2179 :	anton	1.1
2180 :	pazsan	1.3	\ User variables 04may94py
2181 :
2182 :			>CROSS
2183 :	jwilke	1.78
2184 :	pazsan	1.3	Variable tup 0 tup !
2185 :			Variable tudp 0 tudp !
2186 :	jwilke	1.78
2187 :	pazsan	1.3	: u, ( n -- udp )
2188 :			tup @ tudp @ + T ! H
2189 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2190 :	jwilke	1.78
2191 :	pazsan	1.3	: au, ( n -- udp )
2192 :			tup @ tudp @ + T A! H
2193 :	pazsan	1.19	tudp @ dup T cell+ H tudp ! ;
2194 :	jwilke	1.78
2195 :	pazsan	1.3	>TARGET
2196 :
2197 :	jwilke	1.78	Build: 0 u, X , ;
2198 :			by: :douser ( ghost -- up-addr ) X @ tup @ + ;DO
2199 :	pazsan	1.94	compile: compile useraddr T @ , H ;compile
2200 :	anton	1.1	Builder User
2201 :
2202 :	jwilke	1.78	Build: 0 u, X , 0 u, drop ;
2203 :	pazsan	1.3	by User
2204 :	anton	1.1	Builder 2User
2205 :
2206 :	jwilke	1.78	Build: 0 au, X , ;
2207 :	pazsan	1.3	by User
2208 :	anton	1.1	Builder AUser
2209 :
2210 :	jwilke	1.52	BuildSmart: T , H ;
2211 :	pazsan	1.44	by (Constant)
2212 :	anton	1.1	Builder Value
2213 :
2214 :	jwilke	1.52	BuildSmart: T A, H ;
2215 :	pazsan	1.44	by (Constant)
2216 :	pazsan	1.32	Builder AValue
2217 :
2218 :	jwilke	1.52	BuildSmart: ( -- ) [T'] noop T A, H ;
2219 :	pazsan	1.42	by: :dodefer ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2220 :	pazsan	1.94	compile: alit, compile @ compile execute ;compile
2221 :	anton	1.1	Builder Defer
2222 :	pazsan	1.37
2223 :	jwilke	1.78	Build: ( inter comp -- ) swap T immediate A, A, H ;
2224 :	pazsan	1.37	DO: ( ghost -- ) ABORT" CROSS: Don't execute" ;DO
2225 :	anton	1.38	Builder interpret/compile:
2226 :	pazsan	1.24
2227 :			\ Sturctures 23feb95py
2228 :
2229 :			>CROSS
2230 :			: nalign ( addr1 n -- addr2 )
2231 :			\ addr2 is the aligned version of addr1 wrt the alignment size n
2232 :			1- tuck + swap invert and ;
2233 :			>TARGET
2234 :
2235 :	pazsan	1.44	Build: ;
2236 :			by: :dofield T @ H + ;DO
2237 :	pazsan	1.94	compile: T @ H lit, compile + ;compile
2238 :	pazsan	1.44	Builder (Field)
2239 :
2240 :	anton	1.51	Build: ( align1 offset1 align size "name" -- align2 offset2 )
2241 :			rot dup T , H ( align1 align size offset1 )
2242 :			+ >r nalign r> ;
2243 :	pazsan	1.44	by (Field)
2244 :	pazsan	1.24	Builder Field
2245 :
2246 :	anton	1.51	: struct T 1 chars 0 H ;
2247 :	pazsan	1.24	: end-struct T 2Constant H ;
2248 :
2249 :	jwilke	1.52	: cell% ( n -- size align )
2250 :	anton	1.51	T 1 cells H dup ;
2251 :	pazsan	1.88
2252 :	pazsan	1.91	Build: ( m v -- m' v ) dup T , cell+ H ;
2253 :	pazsan	1.88	DO: abort" Not in cross mode" ;DO
2254 :			Builder input-method
2255 :
2256 :			Build: ( m v size -- m v' ) over T , H + ;
2257 :			DO: abort" Not in cross mode" ;DO
2258 :			Builder input-var
2259 :	pazsan	1.24
2260 :	jwilke	1.52	\ structural conditionals 17dec92py
2261 :
2262 :			>CROSS
2263 :			: ?struc ( flag -- ) ABORT" CROSS: unstructured " ;
2264 :			: sys? ( sys -- sys ) dup 0= ?struc ;
2265 :			: >mark ( -- sys ) T here ( dup ." M" hex. ) 0 , H ;
2266 :
2267 :	jwilke	1.78	: branchoffset ( src dest -- ) - tchar / ; \ ?? jaw
2268 :	jwilke	1.52
2269 :	jwilke	1.78	: >resolve ( sys -- )
2270 :			X here ( dup ." >" hex. ) over branchoffset swap X ! ;
2271 :	jwilke	1.52
2272 :	jwilke	1.78	: <resolve ( sys -- )
2273 :			X here ( dup ." <" hex. ) branchoffset X , ;
2274 :	jwilke	1.52
2275 :	jwilke	1.78	:noname compile branch X here branchoffset X , ;
2276 :	pazsan	1.54	IS branch, ( target-addr -- )
2277 :	jwilke	1.78	:noname compile ?branch X here branchoffset X , ;
2278 :	pazsan	1.54	IS ?branch, ( target-addr -- )
2279 :			:noname compile branch T here 0 , H ;
2280 :			IS branchmark, ( -- branchtoken )
2281 :			:noname compile ?branch T here 0 , H ;
2282 :			IS ?branchmark, ( -- branchtoken )
2283 :			:noname T here 0 , H ;
2284 :			IS ?domark, ( -- branchtoken )
2285 :	jwilke	1.78	:noname dup X @ ?struc X here over branchoffset swap X ! ;
2286 :	pazsan	1.54	IS branchtoresolve, ( branchtoken -- )
2287 :	jwilke	1.78	:noname branchto, X here ;
2288 :	pazsan	1.54	IS branchtomark, ( -- target-addr )
2289 :	jwilke	1.52
2290 :			>TARGET
2291 :
2292 :			\ Structural Conditionals 12dec92py
2293 :
2294 :			Cond: BUT restrict? sys? swap ;Cond
2295 :			Cond: YET restrict? sys? dup ;Cond
2296 :
2297 :			>CROSS
2298 :
2299 :	jwilke	1.78	Variable tleavings 0 tleavings !
2300 :	jwilke	1.52
2301 :	pazsan	1.54	: (done) ( addr -- )
2302 :			tleavings @
2303 :			BEGIN dup
2304 :			WHILE
2305 :			>r dup r@ cell+ @ \ address of branch
2306 :			u> 0= \ lower than DO?
2307 :			WHILE
2308 :			r@ 2 cells + @ \ branch token
2309 :			branchtoresolve,
2310 :			r@ @ r> free throw
2311 :			REPEAT r> THEN
2312 :			tleavings ! drop ;
2313 :
2314 :	jwilke	1.53	>TARGET
2315 :
2316 :	pazsan	1.54	Cond: DONE ( addr -- ) restrict? (done) ;Cond
2317 :	jwilke	1.53
2318 :			>CROSS
2319 :	pazsan	1.54	: (leave) ( branchtoken -- )
2320 :	jwilke	1.53	3 cells allocate throw >r
2321 :			T here H r@ cell+ !
2322 :			r@ 2 cells + !
2323 :			tleavings @ r@ !
2324 :			r> tleavings ! ;
2325 :			>TARGET
2326 :
2327 :	pazsan	1.54	Cond: LEAVE restrict? branchmark, (leave) ;Cond
2328 :			Cond: ?LEAVE restrict? compile 0= ?branchmark, (leave) ;Cond
2329 :	jwilke	1.53
2330 :	pazsan	1.54	>CROSS
2331 :			\ !!JW ToDo : Move to general tools section
2332 :
2333 :			: to1 ( x1 x2 xn n -- addr )
2334 :			\G packs n stack elements in a allocated memory region
2335 :			dup dup 1+ cells allocate throw dup >r swap 1+
2336 :			0 DO tuck ! cell+ LOOP
2337 :			drop r> ;
2338 :			: 1to ( addr -- x1 x2 xn )
2339 :			\G unpacks the elements saved by to1
2340 :			dup @ swap over cells + swap
2341 :			0 DO dup @ swap 1 cells - LOOP
2342 :			free throw ;
2343 :
2344 :			: loop] branchto, dup <resolve tcell - (done) ;
2345 :
2346 :			: skiploop] ?dup IF branchto, branchtoresolve, THEN ;
2347 :
2348 :			>TARGET
2349 :
2350 :	jwilke	1.52	\ Structural Conditionals 12dec92py
2351 :
2352 :	jwilke	1.53	>TARGET
2353 :	jwilke	1.52	Cond: AHEAD restrict? branchmark, ;Cond
2354 :			Cond: IF restrict? ?branchmark, ;Cond
2355 :			Cond: THEN restrict? sys? branchto, branchtoresolve, ;Cond
2356 :			Cond: ELSE restrict? sys? compile AHEAD swap compile THEN ;Cond
2357 :
2358 :			Cond: BEGIN restrict? branchtomark, ;Cond
2359 :			Cond: WHILE restrict? sys? compile IF swap ;Cond
2360 :			Cond: AGAIN restrict? sys? branch, ;Cond
2361 :			Cond: UNTIL restrict? sys? ?branch, ;Cond
2362 :			Cond: REPEAT restrict? over 0= ?struc compile AGAIN compile THEN ;Cond
2363 :
2364 :			Cond: CASE restrict? 0 ;Cond
2365 :			Cond: OF restrict? 1+ >r compile over compile =
2366 :			compile IF compile drop r> ;Cond
2367 :	pazsan	1.45	Cond: ENDOF restrict? >r compile ELSE r> ;Cond
2368 :			Cond: ENDCASE restrict? compile drop 0 ?DO compile THEN LOOP ;Cond
2369 :	anton	1.1
2370 :			\ Structural Conditionals 12dec92py
2371 :
2372 :	jwilke	1.67	:noname \ ?? i think 0 is too much! jaw
2373 :	pazsan	1.54	0 compile (do)
2374 :			branchtomark, 2 to1 ;
2375 :			IS do, ( -- target-addr )
2376 :
2377 :			\ :noname
2378 :			\ compile 2dup compile = compile IF
2379 :			\ compile 2drop compile ELSE
2380 :			\ compile (do) branchtomark, 2 to1 ;
2381 :			\ IS ?do,
2382 :
2383 :			:noname
2384 :			0 compile (?do) ?domark, (leave)
2385 :			branchtomark, 2 to1 ;
2386 :			IS ?do, ( -- target-addr )
2387 :			:noname compile (for) branchtomark, ;
2388 :			IS for, ( -- target-addr )
2389 :			:noname 1to compile (loop) loop] compile unloop skiploop] ;
2390 :			IS loop, ( target-addr -- )
2391 :			:noname 1to compile (+loop) loop] compile unloop skiploop] ;
2392 :			IS +loop, ( target-addr -- )
2393 :			:noname compile (next) loop] compile unloop ;
2394 :			IS next, ( target-addr -- )
2395 :
2396 :			Cond: DO restrict? do, ;Cond
2397 :			Cond: ?DO restrict? ?do, ;Cond
2398 :			Cond: FOR restrict? for, ;Cond
2399 :
2400 :			Cond: LOOP restrict? sys? loop, ;Cond
2401 :			Cond: +LOOP restrict? sys? +loop, ;Cond
2402 :			Cond: NEXT restrict? sys? next, ;Cond
2403 :	jwilke	1.52
2404 :	anton	1.1	\ String words 23feb93py
2405 :
2406 :	jwilke	1.52	: ," [char] " parse T string, align H ;
2407 :	anton	1.1
2408 :	pazsan	1.97	Cond: ." restrict? compile (.") T ," H ;Cond
2409 :			Cond: S" restrict? compile (S") T ," H ;Cond
2410 :			Cond: ABORT" restrict? compile (ABORT") T ," H ;Cond
2411 :	anton	1.1
2412 :			Cond: IS T ' >body H compile ALiteral compile ! ;Cond
2413 :	pazsan	1.66	: IS T >address ' >body ! H ;
2414 :	pazsan	1.9	Cond: TO T ' >body H compile ALiteral compile ! ;Cond
2415 :			: TO T ' >body ! H ;
2416 :	anton	1.1
2417 :	jwilke	1.52	Cond: defers T ' >body @ compile, H ;Cond
2418 :			: on T -1 swap ! H ;
2419 :			: off T 0 swap ! H ;
2420 :
2421 :	anton	1.1	\ LINKED ERR" ENV" 2ENV" 18may93jaw
2422 :
2423 :			\ linked list primitive
2424 :	jwilke	1.79	: linked X here over X @ X A, swap X ! ;
2425 :	jwilke	1.52	: chained T linked A, H ;
2426 :	anton	1.1
2427 :			: err" s" ErrLink linked" evaluate T , H
2428 :	jwilke	1.52	[char] " parse T string, align H ;
2429 :	anton	1.1
2430 :			: env" [char] " parse s" EnvLink linked" evaluate
2431 :	jwilke	1.52	T string, align , H ;
2432 :	anton	1.1
2433 :			: 2env" [char] " parse s" EnvLink linked" evaluate
2434 :	jwilke	1.52	here >r T string, align , , H
2435 :	anton	1.1	r> dup T c@ H 80 and swap T c! H ;
2436 :
2437 :			\ compile must be last 22feb93py
2438 :
2439 :			Cond: compile ( -- ) restrict? \ name
2440 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile"
2441 :	anton	1.1	0> IF gexecute
2442 :			ELSE dup >magic @ <imm> =
2443 :			IF gexecute
2444 :	pazsan	1.54	ELSE compile (compile) addr, THEN THEN ;Cond
2445 :	anton	1.1
2446 :			Cond: postpone ( -- ) restrict? \ name
2447 :	pazsan	1.13	bl word gfind dup 0= ABORT" CROSS: Can't compile"
2448 :	anton	1.1	0> IF gexecute
2449 :			ELSE dup >magic @ <imm> =
2450 :			IF gexecute
2451 :	pazsan	1.54	ELSE compile (compile) addr, THEN THEN ;Cond
2452 :
2453 :	jwilke	1.77	\ save-cross 17mar93py
2454 :
2455 :			hex
2456 :
2457 :			>CROSS
2458 :			Create magic s" Gforth2x" here over allot swap move
2459 :
2460 :			bigendian 1+ \ strangely, in magic big=0, little=1
2461 :			tcell 1 = 0 and or
2462 :			tcell 2 = 2 and or
2463 :			tcell 4 = 4 and or
2464 :			tcell 8 = 6 and or
2465 :			tchar 1 = 00 and or
2466 :			tchar 2 = 28 and or
2467 :			tchar 4 = 50 and or
2468 :			tchar 8 = 78 and or
2469 :			magic 7 + c!
2470 :
2471 :			: save-cross ( "image-name" "binary-name" -- )
2472 :			bl parse ." Saving to " 2dup type cr
2473 :			w/o bin create-file throw >r
2474 :			TNIL IF
2475 :	anton	1.80	s" #! " r@ write-file throw
2476 :			bl parse r@ write-file throw
2477 :			s" --image-file" r@ write-file throw
2478 :	jwilke	1.77	#lf r@ emit-file throw
2479 :			r@ dup file-position throw drop 8 mod 8 swap ( file-id limit index )
2480 :			?do
2481 :			bl over emit-file throw
2482 :			loop
2483 :			drop
2484 :			magic 8 r@ write-file throw \ write magic
2485 :			ELSE
2486 :			bl parse 2drop
2487 :			THEN
2488 :			image @ there
2489 :			r@ write-file throw \ write image
2490 :			TNIL IF
2491 :			bit$ @ there 1- tcell>bit rshift 1+
2492 :			r@ write-file throw \ write tags
2493 :			THEN
2494 :			r> close-file throw ;
2495 :
2496 :			: save-region ( addr len -- )
2497 :			bl parse w/o bin create-file throw >r
2498 :			swap >image swap r@ write-file throw
2499 :			r> close-file throw ;
2500 :
2501 :	pazsan	1.54	\ \ minimal definitions
2502 :
2503 :	jwilke	1.77	>MINIMAL also minimal
2504 :
2505 :	anton	1.1	\ Usefull words 13feb93py
2506 :
2507 :			: KB 400 * ;
2508 :
2509 :	pazsan	1.54	\ \ [IF] [ELSE] [THEN] ... 14sep97jaw
2510 :
2511 :			\ it is useful to define our own structures and not to rely
2512 :			\ on the words in the compiler
2513 :			\ The words in the compiler might be defined with vocabularies
2514 :			\ this doesn't work with our self-made compile-loop
2515 :
2516 :			Create parsed 20 chars allot \ store word we parsed
2517 :
2518 :			: upcase
2519 :			parsed count bounds
2520 :			?DO I c@ toupper I c! LOOP ;
2521 :
2522 :			: [ELSE]
2523 :			1 BEGIN
2524 :			BEGIN bl word count dup WHILE
2525 :	jwilke	1.77	comment? 20 umin parsed place upcase parsed count
2526 :	pazsan	1.54	2dup s" [IF]" compare 0= >r
2527 :			2dup s" [IFUNDEF]" compare 0= >r
2528 :			2dup s" [IFDEF]" compare 0= r> or r> or
2529 :			IF 2drop 1+
2530 :			ELSE 2dup s" [ELSE]" compare 0=
2531 :			IF 2drop 1- dup
2532 :			IF 1+
2533 :			THEN
2534 :			ELSE
2535 :			2dup s" [ENDIF]" compare 0= >r
2536 :			s" [THEN]" compare 0= r> or
2537 :			IF 1- THEN
2538 :			THEN
2539 :			THEN
2540 :			?dup 0= ?EXIT
2541 :			REPEAT
2542 :			2drop refill 0=
2543 :			UNTIL drop ; immediate
2544 :
2545 :			: [THEN] ( -- ) ; immediate
2546 :
2547 :			: [ENDIF] ( -- ) ; immediate
2548 :
2549 :			: [IF] ( flag -- )
2550 :			0= IF postpone [ELSE] THEN ; immediate
2551 :
2552 :			Cond: [IF] postpone [IF] ;Cond
2553 :			Cond: [THEN] postpone [THEN] ;Cond
2554 :			Cond: [ELSE] postpone [ELSE] ;Cond
2555 :
2556 :	anton	1.1	\ define new [IFDEF] and [IFUNDEF] 20may93jaw
2557 :
2558 :	jwilke	1.77	: defined? tdefined? ;
2559 :	pazsan	1.44	: needed? needed? ;
2560 :			: doer? doer? ;
2561 :	anton	1.1
2562 :	jwilke	1.52	\ we want to use IFDEF on compiler directives (e.g. E?) in the source, too
2563 :
2564 :			: directive?
2565 :	jwilke	1.77	bl word count [ ' target >wordlist ] literal search-wordlist
2566 :	jwilke	1.52	dup IF nip THEN ;
2567 :
2568 :			: [IFDEF] >in @ directive? swap >in !
2569 :	jwilke	1.77	0= IF tdefined? ELSE name 2drop true THEN
2570 :	jwilke	1.52	postpone [IF] ;
2571 :
2572 :	jwilke	1.77	: [IFUNDEF] tdefined? 0= postpone [IF] ;
2573 :	anton	1.1
2574 :	pazsan	1.54	Cond: [IFDEF] postpone [IFDEF] ;Cond
2575 :
2576 :			Cond: [IFUNDEF] postpone [IFUNDEF] ;Cond
2577 :
2578 :	anton	1.1	\ C: \- \+ Conditional Compiling 09jun93jaw
2579 :
2580 :	jwilke	1.77	: C: >in @ tdefined? 0=
2581 :			IF >in ! X :
2582 :	anton	1.1	ELSE drop
2583 :			BEGIN bl word dup c@
2584 :			IF count comment? s" ;" compare 0= ?EXIT
2585 :			ELSE refill 0= ABORT" CROSS: Out of Input while C:"
2586 :			THEN
2587 :			AGAIN
2588 :			THEN ;
2589 :
2590 :	jwilke	1.74	: d? d? ;
2591 :
2592 :			\G doesn't skip line when debug switch is on
2593 :			: \D D? 0= IF postpone \ THEN ;
2594 :	jwilke	1.52
2595 :	anton	1.48	\G interprets the line if word is not defined
2596 :	jwilke	1.77	: \- tdefined? IF postpone \ THEN ;
2597 :	anton	1.48
2598 :			\G interprets the line if word is defined
2599 :	jwilke	1.77	: \+ tdefined? 0= IF postpone \ THEN ;
2600 :	anton	1.1
2601 :	anton	1.48	Cond: \- \- ;Cond
2602 :			Cond: \+ \+ ;Cond
2603 :	jwilke	1.52	Cond: \D \D ;Cond
2604 :	anton	1.48
2605 :			: ?? bl word find IF execute ELSE drop 0 THEN ;
2606 :
2607 :			: needed:
2608 :			\G defines ghost for words that we want to be compiled
2609 :			BEGIN >in @ bl word c@ WHILE >in ! ghost drop REPEAT drop ;
2610 :
2611 :	anton	1.1	\ words that should be in minimal
2612 :	jwilke	1.52
2613 :			create s-buffer 50 chars allot
2614 :
2615 :	jwilke	1.77	bigendian Constant bigendian
2616 :	anton	1.1
2617 :	jwilke	1.52	: here there ;
2618 :	jwilke	1.67	: equ constant ;
2619 :			: mark there constant ;
2620 :	pazsan	1.54
2621 :			\ compiler directives
2622 :	jwilke	1.52	: >ram >ram ;
2623 :			: >rom >rom ;
2624 :			: >auto >auto ;
2625 :			: >tempdp >tempdp ;
2626 :			: tempdp> tempdp> ;
2627 :			: const constflag on ;
2628 :			: warnings name 3 = 0= twarnings ! drop ;
2629 :	anton	1.60	: \| ;
2630 :			\ : \| NoHeaderFlag on ; \ This is broken (damages the last word)
2631 :	jwilke	1.52
2632 :	anton	1.48	: save-cross save-cross ;
2633 :	jwilke	1.52	: save-region save-region ;
2634 :			: tdump swap >image swap dump ;
2635 :
2636 :	anton	1.48	also forth
2637 :	jwilke	1.52	[IFDEF] Label : Label defempty? Label ; [THEN]
2638 :			[IFDEF] start-macros : start-macros defempty? start-macros ; [THEN]
2639 :	jwilke	1.77	\ [IFDEF] builttag : builttag builttag ; [THEN]
2640 :	anton	1.48	previous
2641 :
2642 :	jwilke	1.52	: s" [char] " parse s-buffer place s-buffer count ; \ for environment?
2643 :	pazsan	1.43	: + + ;
2644 :	jwilke	1.52	: 1+ 1 + ;
2645 :			: 2+ 2 + ;
2646 :	pazsan	1.43	: 1- 1- ;
2647 :			: - - ;
2648 :	jwilke	1.52	: and and ;
2649 :			: or or ;
2650 :	pazsan	1.43	: 2* 2* ;
2651 :			: * * ;
2652 :			: / / ;
2653 :			: dup dup ;
2654 :			: over over ;
2655 :			: swap swap ;
2656 :			: rot rot ;
2657 :			: drop drop ;
2658 :			: = = ;
2659 :			: 0= 0= ;
2660 :			: lshift lshift ;
2661 :			: 2/ 2/ ;
2662 :	pazsan	1.19	: . . ;
2663 :	anton	1.1
2664 :	jwilke	1.79	: all-words ['] forced? IS skip? ;
2665 :	pazsan	1.43	: needed-words ['] needed? IS skip? ;
2666 :	jwilke	1.75	: undef-words ['] defined2? IS skip? ;
2667 :			: skipdef skipdef ;
2668 :	anton	1.1
2669 :	pazsan	1.40	: \ postpone \ ; immediate
2670 :	pazsan	1.47	: \G T-\G ; immediate
2671 :	pazsan	1.40	: ( postpone ( ; immediate
2672 :	anton	1.1	: include bl word count included ;
2673 :	jwilke	1.52	: require require ;
2674 :	anton	1.1	: .( [char] ) parse type ;
2675 :	jwilke	1.52	: ." [char] " parse type ;
2676 :	anton	1.1	: cr cr ;
2677 :
2678 :	jwilke	1.77	: times 0 ?DO dup X c, LOOP drop ; \ used for space table creation
2679 :
2680 :			\ only forth also cross also minimal definitions order
2681 :	anton	1.1
2682 :			\ cross-compiler words
2683 :
2684 :			: decimal decimal ;
2685 :			: hex hex ;
2686 :
2687 :	jwilke	1.77	\ : tudp X tudp ;
2688 :			\ : tup X tup ;
2689 :
2690 :			: doc-off false to-doc ! ;
2691 :			: doc-on true to-doc ! ;
2692 :	pazsan	1.39
2693 :	jwilke	1.52	[IFDEF] dbg : dbg dbg ; [THEN]
2694 :	pazsan	1.39
2695 :	anton	1.1	\ for debugging...
2696 :			: order order ;
2697 :	jwilke	1.52	: hwords words ;
2698 :			: words also ghosts words previous ;
2699 :	anton	1.1	: .s .s ;
2700 :			: bye bye ;
2701 :
2702 :			\ turnkey direction
2703 :			: H forth ; immediate
2704 :			: T minimal ; immediate
2705 :			: G ghosts ; immediate
2706 :
2707 :	jwilke	1.77	: turnkey
2708 :	jwilke	1.78	\GFORTH 0 set-order also ghosts
2709 :			\ANSI [ ' ghosts >wordlist ] Literal 1 set-order
2710 :			also target definitions
2711 :	jwilke	1.77	also Minimal also ;
2712 :	anton	1.1
2713 :			\ these ones are pefered:
2714 :
2715 :			: lock turnkey ;
2716 :	jwilke	1.74	: unlock previous forth also cross ;
2717 :	jwilke	1.52
2718 :	jwilke	1.77	\ also minimal
2719 :	jwilke	1.52	: [[ also unlock ;
2720 :	jwilke	1.78	: ]] previous previous also also ;
2721 :	anton	1.1
2722 :			unlock definitions also minimal
2723 :			: lock lock ;
2724 :			lock
2725 :	jwilke	1.77
2726 :			\ load cross compiler extension defined in mach file
2727 :
2728 :			UNLOCK >CROSS
2729 :
2730 :			[IFDEF] extend-cross extend-cross [THEN]
2731 :
2732 :			LOCK

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